Home / 103,472.55-142,843.79-67,717.18

Finding the Fourth Proportional to 103,472.55, 142,843.79 and 67,717.18

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Solution

The fourth proportional to 103,472.55, 142,843.79 and 67,717.18 is: 93,483.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,472.55 : 142,843.79 = 67,717.18 : x
  2. Step 2: Convert to fraction form
    103,472.55/142,843.79 = 67,717.18/x
  3. Step 3: Cross multiply
    103,472.55x = 142,843.79 × 67,717.18
  4. Step 4: Simplify right side
    103,472.55x = 9,672,978,987.16
  5. Step 5: Solve for x
    x = 9,672,978,987.16/103,472.55
  6. Step 6: Final answer
    x = 93,483.53

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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.