Home / 136,149.40-204,197.10-129,398.20

Finding the Fourth Proportional to 136,149.40, 204,197.10 and 129,398.20

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Solution

The fourth proportional to 136,149.40, 204,197.10 and 129,398.20 is: 194,071.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,149.40 : 204,197.10 = 129,398.20 : x
  2. Step 2: Convert to fraction form
    136,149.40/204,197.10 = 129,398.20/x
  3. Step 3: Cross multiply
    136,149.40x = 204,197.10 × 129,398.20
  4. Step 4: Simplify right side
    136,149.40x = 26,422,737,185.22
  5. Step 5: Solve for x
    x = 26,422,737,185.22/136,149.40
  6. Step 6: Final answer
    x = 194,071.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.