Home / 257,683.24-386,366.10-89,164.36

Finding the Fourth Proportional to 257,683.24, 386,366.10 and 89,164.36

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Solution

The fourth proportional to 257,683.24, 386,366.10 and 89,164.36 is: 133,691.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,683.24 : 386,366.10 = 89,164.36 : x
  2. Step 2: Convert to fraction form
    257,683.24/386,366.10 = 89,164.36/x
  3. Step 3: Cross multiply
    257,683.24x = 386,366.10 × 89,164.36
  4. Step 4: Simplify right side
    257,683.24x = 34,450,086,032.20
  5. Step 5: Solve for x
    x = 34,450,086,032.20/257,683.24
  6. Step 6: Final answer
    x = 133,691.61

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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.