Home / 103,069.16-142,234.68-57,747.53

Finding the Fourth Proportional to 103,069.16, 142,234.68 and 57,747.53

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Solution

The fourth proportional to 103,069.16, 142,234.68 and 57,747.53 is: 79,691.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,069.16 : 142,234.68 = 57,747.53 : x
  2. Step 2: Convert to fraction form
    103,069.16/142,234.68 = 57,747.53/x
  3. Step 3: Cross multiply
    103,069.16x = 142,234.68 × 57,747.53
  4. Step 4: Simplify right side
    103,069.16x = 8,213,702,022.48
  5. Step 5: Solve for x
    x = 8,213,702,022.48/103,069.16
  6. Step 6: Final answer
    x = 79,691.17

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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.