Home / 103,325.32-142,593.67-57,385.15

Finding the Fourth Proportional to 103,325.32, 142,593.67 and 57,385.15

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Solution

The fourth proportional to 103,325.32, 142,593.67 and 57,385.15 is: 79,194.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,325.32 : 142,593.67 = 57,385.15 : x
  2. Step 2: Convert to fraction form
    103,325.32/142,593.67 = 57,385.15/x
  3. Step 3: Cross multiply
    103,325.32x = 142,593.67 × 57,385.15
  4. Step 4: Simplify right side
    103,325.32x = 8,182,758,737.42
  5. Step 5: Solve for x
    x = 8,182,758,737.42/103,325.32
  6. Step 6: Final answer
    x = 79,194.13

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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.