Home / 257,107.06-385,819.89-124,000.66

Finding the Fourth Proportional to 257,107.06, 385,819.89 and 124,000.66

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Solution

The fourth proportional to 257,107.06, 385,819.89 and 124,000.66 is: 186,077.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,107.06 : 385,819.89 = 124,000.66 : x
  2. Step 2: Convert to fraction form
    257,107.06/385,819.89 = 124,000.66/x
  3. Step 3: Cross multiply
    257,107.06x = 385,819.89 × 124,000.66
  4. Step 4: Simplify right side
    257,107.06x = 47,841,921,001.13
  5. Step 5: Solve for x
    x = 47,841,921,001.13/257,107.06
  6. Step 6: Final answer
    x = 186,077.82

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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.