Home / 170,819.12-256,228.68-86,566.16

Finding the Fourth Proportional to 170,819.12, 256,228.68 and 86,566.16

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Solution

The fourth proportional to 170,819.12, 256,228.68 and 86,566.16 is: 129,849.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,819.12 : 256,228.68 = 86,566.16 : x
  2. Step 2: Convert to fraction form
    170,819.12/256,228.68 = 86,566.16/x
  3. Step 3: Cross multiply
    170,819.12x = 256,228.68 × 86,566.16
  4. Step 4: Simplify right side
    170,819.12x = 22,180,732,909.47
  5. Step 5: Solve for x
    x = 22,180,732,909.47/170,819.12
  6. Step 6: Final answer
    x = 129,849.24

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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.