Home / 99,507.38-137,323.58-54,186.14

Finding the Fourth Proportional to 99,507.38, 137,323.58 and 54,186.14

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Solution

The fourth proportional to 99,507.38, 137,323.58 and 54,186.14 is: 74,778.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,507.38 : 137,323.58 = 54,186.14 : x
  2. Step 2: Convert to fraction form
    99,507.38/137,323.58 = 54,186.14/x
  3. Step 3: Cross multiply
    99,507.38x = 137,323.58 × 54,186.14
  4. Step 4: Simplify right side
    99,507.38x = 7,441,034,731.18
  5. Step 5: Solve for x
    x = 7,441,034,731.18/99,507.38
  6. Step 6: Final answer
    x = 74,778.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.