Home / 123,207.83-170,063.17-72,231.60

Finding the Fourth Proportional to 123,207.83, 170,063.17 and 72,231.60

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Solution

The fourth proportional to 123,207.83, 170,063.17 and 72,231.60 is: 99,700.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,207.83 : 170,063.17 = 72,231.60 : x
  2. Step 2: Convert to fraction form
    123,207.83/170,063.17 = 72,231.60/x
  3. Step 3: Cross multiply
    123,207.83x = 170,063.17 × 72,231.60
  4. Step 4: Simplify right side
    123,207.83x = 12,283,934,573.88
  5. Step 5: Solve for x
    x = 12,283,934,573.88/123,207.83
  6. Step 6: Final answer
    x = 99,700.92

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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.