Home / 159,872.12-220,607.80-88,247.52

Finding the Fourth Proportional to 159,872.12, 220,607.80 and 88,247.52

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Solution

The fourth proportional to 159,872.12, 220,607.80 and 88,247.52 is: 121,772.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,872.12 : 220,607.80 = 88,247.52 : x
  2. Step 2: Convert to fraction form
    159,872.12/220,607.80 = 88,247.52/x
  3. Step 3: Cross multiply
    159,872.12x = 220,607.80 × 88,247.52
  4. Step 4: Simplify right side
    159,872.12x = 19,468,091,242.66
  5. Step 5: Solve for x
    x = 19,468,091,242.66/159,872.12
  6. Step 6: Final answer
    x = 121,772.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.