Home / 159,731.20-220,426.32-88,118.08

Finding the Fourth Proportional to 159,731.20, 220,426.32 and 88,118.08

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Solution

The fourth proportional to 159,731.20, 220,426.32 and 88,118.08 is: 121,601.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,731.20 : 220,426.32 = 88,118.08 : x
  2. Step 2: Convert to fraction form
    159,731.20/220,426.32 = 88,118.08/x
  3. Step 3: Cross multiply
    159,731.20x = 220,426.32 × 88,118.08
  4. Step 4: Simplify right side
    159,731.20x = 19,423,544,099.87
  5. Step 5: Solve for x
    x = 19,423,544,099.87/159,731.20
  6. Step 6: Final answer
    x = 121,601.44

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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.