Home / 170,232.10-255,348.15-86,251.30

Finding the Fourth Proportional to 170,232.10, 255,348.15 and 86,251.30

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Solution

The fourth proportional to 170,232.10, 255,348.15 and 86,251.30 is: 129,376.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,232.10 : 255,348.15 = 86,251.30 : x
  2. Step 2: Convert to fraction form
    170,232.10/255,348.15 = 86,251.30/x
  3. Step 3: Cross multiply
    170,232.10x = 255,348.15 × 86,251.30
  4. Step 4: Simplify right side
    170,232.10x = 22,024,109,890.10
  5. Step 5: Solve for x
    x = 22,024,109,890.10/170,232.10
  6. Step 6: Final answer
    x = 129,376.95

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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.