Home / 159,941.72-220,719.52-88,321.88

Finding the Fourth Proportional to 159,941.72, 220,719.52 and 88,321.88

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Solution

The fourth proportional to 159,941.72, 220,719.52 and 88,321.88 is: 121,884.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,941.72 : 220,719.52 = 88,321.88 : x
  2. Step 2: Convert to fraction form
    159,941.72/220,719.52 = 88,321.88/x
  3. Step 3: Cross multiply
    159,941.72x = 220,719.52 × 88,321.88
  4. Step 4: Simplify right side
    159,941.72x = 19,494,362,959.10
  5. Step 5: Solve for x
    x = 19,494,362,959.10/159,941.72
  6. Step 6: Final answer
    x = 121,884.16

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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.