Home / 237,117.12-327,217-129,686.80

Finding the Fourth Proportional to 237,117.12, 327,217 and 129,686.80

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Solution

The fourth proportional to 237,117.12, 327,217 and 129,686.80 is: 178,965.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,117.12 : 327,217 = 129,686.80 : x
  2. Step 2: Convert to fraction form
    237,117.12/327,217 = 129,686.80/x
  3. Step 3: Cross multiply
    237,117.12x = 327,217 × 129,686.80
  4. Step 4: Simplify right side
    237,117.12x = 42,435,725,635.60
  5. Step 5: Solve for x
    x = 42,435,725,635.60/237,117.12
  6. Step 6: Final answer
    x = 178,965.25

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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.