Home / 87,843.18-131,895.99-86,530.98

Finding the Fourth Proportional to 87,843.18, 131,895.99 and 86,530.98

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Solution

The fourth proportional to 87,843.18, 131,895.99 and 86,530.98 is: 129,925.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,843.18 : 131,895.99 = 86,530.98 : x
  2. Step 2: Convert to fraction form
    87,843.18/131,895.99 = 86,530.98/x
  3. Step 3: Cross multiply
    87,843.18x = 131,895.99 × 86,530.98
  4. Step 4: Simplify right side
    87,843.18x = 11,413,089,272.77
  5. Step 5: Solve for x
    x = 11,413,089,272.77/87,843.18
  6. Step 6: Final answer
    x = 129,925.73

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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.