Home / 123,471.68-170,390.74-66,883.28

Finding the Fourth Proportional to 123,471.68, 170,390.74 and 66,883.28

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Solution

The fourth proportional to 123,471.68, 170,390.74 and 66,883.28 is: 92,298.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,471.68 : 170,390.74 = 66,883.28 : x
  2. Step 2: Convert to fraction form
    123,471.68/170,390.74 = 66,883.28/x
  3. Step 3: Cross multiply
    123,471.68x = 170,390.74 × 66,883.28
  4. Step 4: Simplify right side
    123,471.68x = 11,396,291,572.83
  5. Step 5: Solve for x
    x = 11,396,291,572.83/123,471.68
  6. Step 6: Final answer
    x = 92,298.83

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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.