Home / 123,529.12-170,470.17-66,940.50

Finding the Fourth Proportional to 123,529.12, 170,470.17 and 66,940.50

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Solution

The fourth proportional to 123,529.12, 170,470.17 and 66,940.50 is: 92,377.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,529.12 : 170,470.17 = 66,940.50 : x
  2. Step 2: Convert to fraction form
    123,529.12/170,470.17 = 66,940.50/x
  3. Step 3: Cross multiply
    123,529.12x = 170,470.17 × 66,940.50
  4. Step 4: Simplify right side
    123,529.12x = 11,411,358,414.89
  5. Step 5: Solve for x
    x = 11,411,358,414.89/123,529.12
  6. Step 6: Final answer
    x = 92,377.88

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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.