Home / 103,178.73-142,416.17-60,761.86

Finding the Fourth Proportional to 103,178.73, 142,416.17 and 60,761.86

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Solution

The fourth proportional to 103,178.73, 142,416.17 and 60,761.86 is: 83,868.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,178.73 : 142,416.17 = 60,761.86 : x
  2. Step 2: Convert to fraction form
    103,178.73/142,416.17 = 60,761.86/x
  3. Step 3: Cross multiply
    103,178.73x = 142,416.17 × 60,761.86
  4. Step 4: Simplify right side
    103,178.73x = 8,653,471,383.28
  5. Step 5: Solve for x
    x = 8,653,471,383.28/103,178.73
  6. Step 6: Final answer
    x = 83,868.75

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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.