Home / 257,648.20-386,498.81-89,168.23

Finding the Fourth Proportional to 257,648.20, 386,498.81 and 89,168.23

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Solution

The fourth proportional to 257,648.20, 386,498.81 and 89,168.23 is: 133,761.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,648.20 : 386,498.81 = 89,168.23 : x
  2. Step 2: Convert to fraction form
    257,648.20/386,498.81 = 89,168.23/x
  3. Step 3: Cross multiply
    257,648.20x = 386,498.81 × 89,168.23
  4. Step 4: Simplify right side
    257,648.20x = 34,463,412,406.47
  5. Step 5: Solve for x
    x = 34,463,412,406.47/257,648.20
  6. Step 6: Final answer
    x = 133,761.51

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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.