Home / 123,480.02-170,227.90-87,656.96

Finding the Fourth Proportional to 123,480.02, 170,227.90 and 87,656.96

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Solution

The fourth proportional to 123,480.02, 170,227.90 and 87,656.96 is: 120,842.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,480.02 : 170,227.90 = 87,656.96 : x
  2. Step 2: Convert to fraction form
    123,480.02/170,227.90 = 87,656.96/x
  3. Step 3: Cross multiply
    123,480.02x = 170,227.90 × 87,656.96
  4. Step 4: Simplify right side
    123,480.02x = 14,921,660,221.18
  5. Step 5: Solve for x
    x = 14,921,660,221.18/123,480.02
  6. Step 6: Final answer
    x = 120,842.71

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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.