Home / 128,470.46-177,294.04-71,882.24

Finding the Fourth Proportional to 128,470.46, 177,294.04 and 71,882.24

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Solution

The fourth proportional to 128,470.46, 177,294.04 and 71,882.24 is: 99,200.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,470.46 : 177,294.04 = 71,882.24 : x
  2. Step 2: Convert to fraction form
    128,470.46/177,294.04 = 71,882.24/x
  3. Step 3: Cross multiply
    128,470.46x = 177,294.04 × 71,882.24
  4. Step 4: Simplify right side
    128,470.46x = 12,744,292,733.85
  5. Step 5: Solve for x
    x = 12,744,292,733.85/128,470.46
  6. Step 6: Final answer
    x = 99,200.18

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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.