Home / 257,647.70-386,498.06-89,167.73

Finding the Fourth Proportional to 257,647.70, 386,498.06 and 89,167.73

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Solution

The fourth proportional to 257,647.70, 386,498.06 and 89,167.73 is: 133,760.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,647.70 : 386,498.06 = 89,167.73 : x
  2. Step 2: Convert to fraction form
    257,647.70/386,498.06 = 89,167.73/x
  3. Step 3: Cross multiply
    257,647.70x = 386,498.06 × 89,167.73
  4. Step 4: Simplify right side
    257,647.70x = 34,463,152,281.27
  5. Step 5: Solve for x
    x = 34,463,152,281.27/257,647.70
  6. Step 6: Final answer
    x = 133,760.76

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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.