Home / 123,247.53-170,081.60-66,658.91

Finding the Fourth Proportional to 123,247.53, 170,081.60 and 66,658.91

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Solution

The fourth proportional to 123,247.53, 170,081.60 and 66,658.91 is: 91,989.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,247.53 : 170,081.60 = 66,658.91 : x
  2. Step 2: Convert to fraction form
    123,247.53/170,081.60 = 66,658.91/x
  3. Step 3: Cross multiply
    123,247.53x = 170,081.60 × 66,658.91
  4. Step 4: Simplify right side
    123,247.53x = 11,337,452,883.35
  5. Step 5: Solve for x
    x = 11,337,452,883.35/123,247.53
  6. Step 6: Final answer
    x = 91,989.29

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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.