Home / 120,388.16-180,757.20-88,895.36

Finding the Fourth Proportional to 120,388.16, 180,757.20 and 88,895.36

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Solution

The fourth proportional to 120,388.16, 180,757.20 and 88,895.36 is: 133,472.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,388.16 : 180,757.20 = 88,895.36 : x
  2. Step 2: Convert to fraction form
    120,388.16/180,757.20 = 88,895.36/x
  3. Step 3: Cross multiply
    120,388.16x = 180,757.20 × 88,895.36
  4. Step 4: Simplify right side
    120,388.16x = 16,068,476,366.59
  5. Step 5: Solve for x
    x = 16,068,476,366.59/120,388.16
  6. Step 6: Final answer
    x = 133,472.23

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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.