Home / 88,972.20-133,531.20-86,056.20

Finding the Fourth Proportional to 88,972.20, 133,531.20 and 86,056.20

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Solution

The fourth proportional to 88,972.20, 133,531.20 and 86,056.20 is: 129,154.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,972.20 : 133,531.20 = 86,056.20 : x
  2. Step 2: Convert to fraction form
    88,972.20/133,531.20 = 86,056.20/x
  3. Step 3: Cross multiply
    88,972.20x = 133,531.20 × 86,056.20
  4. Step 4: Simplify right side
    88,972.20x = 11,491,187,653.44
  5. Step 5: Solve for x
    x = 11,491,187,653.44/88,972.20
  6. Step 6: Final answer
    x = 129,154.81

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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.