Home / 120,017.52-165,613.20-66,301.44

Finding the Fourth Proportional to 120,017.52, 165,613.20 and 66,301.44

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Solution

The fourth proportional to 120,017.52, 165,613.20 and 66,301.44 is: 91,489.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,017.52 : 165,613.20 = 66,301.44 : x
  2. Step 2: Convert to fraction form
    120,017.52/165,613.20 = 66,301.44/x
  3. Step 3: Cross multiply
    120,017.52x = 165,613.20 × 66,301.44
  4. Step 4: Simplify right side
    120,017.52x = 10,980,393,643.01
  5. Step 5: Solve for x
    x = 10,980,393,643.01/120,017.52
  6. Step 6: Final answer
    x = 91,489.92

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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.