Home / 159,739.20-220,439.61-88,127.10

Finding the Fourth Proportional to 159,739.20, 220,439.61 and 88,127.10

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Solution

The fourth proportional to 159,739.20, 220,439.61 and 88,127.10 is: 121,615.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,739.20 : 220,439.61 = 88,127.10 : x
  2. Step 2: Convert to fraction form
    159,739.20/220,439.61 = 88,127.10/x
  3. Step 3: Cross multiply
    159,739.20x = 220,439.61 × 88,127.10
  4. Step 4: Simplify right side
    159,739.20x = 19,426,703,554.43
  5. Step 5: Solve for x
    x = 19,426,703,554.43/159,739.20
  6. Step 6: Final answer
    x = 121,615.13

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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.