Home / 123,515.50-170,451.52-66,926.88

Finding the Fourth Proportional to 123,515.50, 170,451.52 and 66,926.88

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Solution

The fourth proportional to 123,515.50, 170,451.52 and 66,926.88 is: 92,359.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,515.50 : 170,451.52 = 66,926.88 : x
  2. Step 2: Convert to fraction form
    123,515.50/170,451.52 = 66,926.88/x
  3. Step 3: Cross multiply
    123,515.50x = 170,451.52 × 66,926.88
  4. Step 4: Simplify right side
    123,515.50x = 11,407,788,424.86
  5. Step 5: Solve for x
    x = 11,407,788,424.86/123,515.50
  6. Step 6: Final answer
    x = 92,359.16

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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.