Home / 215,712.40-323,760.60-126,854.80

Finding the Fourth Proportional to 215,712.40, 323,760.60 and 126,854.80

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Solution

The fourth proportional to 215,712.40, 323,760.60 and 126,854.80 is: 190,395.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,712.40 : 323,760.60 = 126,854.80 : x
  2. Step 2: Convert to fraction form
    215,712.40/323,760.60 = 126,854.80/x
  3. Step 3: Cross multiply
    215,712.40x = 323,760.60 × 126,854.80
  4. Step 4: Simplify right side
    215,712.40x = 41,070,586,160.88
  5. Step 5: Solve for x
    x = 41,070,586,160.88/215,712.40
  6. Step 6: Final answer
    x = 190,395.11

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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.