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Finding the Fourth Proportional to 143,017.66, 214,561.17 and 43,171.89

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Solution

The fourth proportional to 143,017.66, 214,561.17 and 43,171.89 is: 64,768.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,017.66 : 214,561.17 = 43,171.89 : x
  2. Step 2: Convert to fraction form
    143,017.66/214,561.17 = 43,171.89/x
  3. Step 3: Cross multiply
    143,017.66x = 214,561.17 × 43,171.89
  4. Step 4: Simplify right side
    143,017.66x = 9,263,010,424.91
  5. Step 5: Solve for x
    x = 9,263,010,424.91/143,017.66
  6. Step 6: Final answer
    x = 64,768.30

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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.