Home / 123,346.16-170,218.20-66,757.52

Finding the Fourth Proportional to 123,346.16, 170,218.20 and 66,757.52

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Solution

The fourth proportional to 123,346.16, 170,218.20 and 66,757.52 is: 92,125.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,346.16 : 170,218.20 = 66,757.52 : x
  2. Step 2: Convert to fraction form
    123,346.16/170,218.20 = 66,757.52/x
  3. Step 3: Cross multiply
    123,346.16x = 170,218.20 × 66,757.52
  4. Step 4: Simplify right side
    123,346.16x = 11,363,344,890.86
  5. Step 5: Solve for x
    x = 11,363,344,890.86/123,346.16
  6. Step 6: Final answer
    x = 92,125.65

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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.