Home / 142,463.81-213,769.53-72,343.13

Finding the Fourth Proportional to 142,463.81, 213,769.53 and 72,343.13

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Solution

The fourth proportional to 142,463.81, 213,769.53 and 72,343.13 is: 108,552.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,463.81 : 213,769.53 = 72,343.13 : x
  2. Step 2: Convert to fraction form
    142,463.81/213,769.53 = 72,343.13/x
  3. Step 3: Cross multiply
    142,463.81x = 213,769.53 × 72,343.13
  4. Step 4: Simplify right side
    142,463.81x = 15,464,755,829.98
  5. Step 5: Solve for x
    x = 15,464,755,829.98/142,463.81
  6. Step 6: Final answer
    x = 108,552.17

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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.