Home / 170,233.60-255,350.40-86,252.80

Finding the Fourth Proportional to 170,233.60, 255,350.40 and 86,252.80

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Solution

The fourth proportional to 170,233.60, 255,350.40 and 86,252.80 is: 129,379.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,233.60 : 255,350.40 = 86,252.80 : x
  2. Step 2: Convert to fraction form
    170,233.60/255,350.40 = 86,252.80/x
  3. Step 3: Cross multiply
    170,233.60x = 255,350.40 × 86,252.80
  4. Step 4: Simplify right side
    170,233.60x = 22,024,686,981.12
  5. Step 5: Solve for x
    x = 22,024,686,981.12/170,233.60
  6. Step 6: Final answer
    x = 129,379.20

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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.