Home / 123,414.50-170,312.10-66,825.92

Finding the Fourth Proportional to 123,414.50, 170,312.10 and 66,825.92

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Solution

The fourth proportional to 123,414.50, 170,312.10 and 66,825.92 is: 92,219.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,414.50 : 170,312.10 = 66,825.92 : x
  2. Step 2: Convert to fraction form
    123,414.50/170,312.10 = 66,825.92/x
  3. Step 3: Cross multiply
    123,414.50x = 170,312.10 × 66,825.92
  4. Step 4: Simplify right side
    123,414.50x = 11,381,262,769.63
  5. Step 5: Solve for x
    x = 11,381,262,769.63/123,414.50
  6. Step 6: Final answer
    x = 92,219.82

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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.