Home / 172,439.28-238,115.88-127,195.92

Finding the Fourth Proportional to 172,439.28, 238,115.88 and 127,195.92

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Solution

The fourth proportional to 172,439.28, 238,115.88 and 127,195.92 is: 175,640.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,439.28 : 238,115.88 = 127,195.92 : x
  2. Step 2: Convert to fraction form
    172,439.28/238,115.88 = 127,195.92/x
  3. Step 3: Cross multiply
    172,439.28x = 238,115.88 × 127,195.92
  4. Step 4: Simplify right side
    172,439.28x = 30,287,368,423.21
  5. Step 5: Solve for x
    x = 30,287,368,423.21/172,439.28
  6. Step 6: Final answer
    x = 175,640.77

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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.