Home / 87,846.93-131,901.62-86,534.73

Finding the Fourth Proportional to 87,846.93, 131,901.62 and 86,534.73

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Solution

The fourth proportional to 87,846.93, 131,901.62 and 86,534.73 is: 129,931.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,846.93 : 131,901.62 = 86,534.73 : x
  2. Step 2: Convert to fraction form
    87,846.93/131,901.62 = 86,534.73/x
  3. Step 3: Cross multiply
    87,846.93x = 131,901.62 × 86,534.73
  4. Step 4: Simplify right side
    87,846.93x = 11,414,071,073.26
  5. Step 5: Solve for x
    x = 11,414,071,073.26/87,846.93
  6. Step 6: Final answer
    x = 129,931.36

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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.