Home / 145,179.14-217,768.72-39,998.12

Finding the Fourth Proportional to 145,179.14, 217,768.72 and 39,998.12

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Solution

The fourth proportional to 145,179.14, 217,768.72 and 39,998.12 is: 59,997.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,179.14 : 217,768.72 = 39,998.12 : x
  2. Step 2: Convert to fraction form
    145,179.14/217,768.72 = 39,998.12/x
  3. Step 3: Cross multiply
    145,179.14x = 217,768.72 × 39,998.12
  4. Step 4: Simplify right side
    145,179.14x = 8,710,339,394.81
  5. Step 5: Solve for x
    x = 8,710,339,394.81/145,179.14
  6. Step 6: Final answer
    x = 59,997.18

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.