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Finding the Fourth Proportional to 123,930.28, 171,024.86 and 67,341.66

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Solution

The fourth proportional to 123,930.28, 171,024.86 and 67,341.66 is: 92,932.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,930.28 : 171,024.86 = 67,341.66 : x
  2. Step 2: Convert to fraction form
    123,930.28/171,024.86 = 67,341.66/x
  3. Step 3: Cross multiply
    123,930.28x = 171,024.86 × 67,341.66
  4. Step 4: Simplify right side
    123,930.28x = 11,517,097,973.67
  5. Step 5: Solve for x
    x = 11,517,097,973.67/123,930.28
  6. Step 6: Final answer
    x = 92,932.07

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1.5x scale

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.