Home / 123,929.46-171,024.21-67,341.78

Finding the Fourth Proportional to 123,929.46, 171,024.21 and 67,341.78

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Solution

The fourth proportional to 123,929.46, 171,024.21 and 67,341.78 is: 92,932.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,929.46 : 171,024.21 = 67,341.78 : x
  2. Step 2: Convert to fraction form
    123,929.46/171,024.21 = 67,341.78/x
  3. Step 3: Cross multiply
    123,929.46x = 171,024.21 × 67,341.78
  4. Step 4: Simplify right side
    123,929.46x = 11,517,074,724.49
  5. Step 5: Solve for x
    x = 11,517,074,724.49/123,929.46
  6. Step 6: Final answer
    x = 92,932.50

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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.