Home / 215,105.15-296,724.06-129,041.24

Finding the Fourth Proportional to 215,105.15, 296,724.06 and 129,041.24

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Solution

The fourth proportional to 215,105.15, 296,724.06 and 129,041.24 is: 178,004.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,105.15 : 296,724.06 = 129,041.24 : x
  2. Step 2: Convert to fraction form
    215,105.15/296,724.06 = 129,041.24/x
  3. Step 3: Cross multiply
    215,105.15x = 296,724.06 × 129,041.24
  4. Step 4: Simplify right side
    215,105.15x = 38,289,639,156.61
  5. Step 5: Solve for x
    x = 38,289,639,156.61/215,105.15
  6. Step 6: Final answer
    x = 178,004.29

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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.