Home / 257,553.22-386,347.14-89,089.82

Finding the Fourth Proportional to 257,553.22, 386,347.14 and 89,089.82

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Solution

The fourth proportional to 257,553.22, 386,347.14 and 89,089.82 is: 133,640.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,553.22 : 386,347.14 = 89,089.82 : x
  2. Step 2: Convert to fraction form
    257,553.22/386,347.14 = 89,089.82/x
  3. Step 3: Cross multiply
    257,553.22x = 386,347.14 × 89,089.82
  4. Step 4: Simplify right side
    257,553.22x = 34,419,597,160.11
  5. Step 5: Solve for x
    x = 34,419,597,160.11/257,553.22
  6. Step 6: Final answer
    x = 133,640.72

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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.