Home / 124,517.60-186,776.40-85,151.60

Finding the Fourth Proportional to 124,517.60, 186,776.40 and 85,151.60

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Solution

The fourth proportional to 124,517.60, 186,776.40 and 85,151.60 is: 127,727.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,517.60 : 186,776.40 = 85,151.60 : x
  2. Step 2: Convert to fraction form
    124,517.60/186,776.40 = 85,151.60/x
  3. Step 3: Cross multiply
    124,517.60x = 186,776.40 × 85,151.60
  4. Step 4: Simplify right side
    124,517.60x = 15,904,309,302.24
  5. Step 5: Solve for x
    x = 15,904,309,302.24/124,517.60
  6. Step 6: Final answer
    x = 127,727.40

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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.