Home / 115,475.68-159,320.16-67,731.04

Finding the Fourth Proportional to 115,475.68, 159,320.16 and 67,731.04

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Solution

The fourth proportional to 115,475.68, 159,320.16 and 67,731.04 is: 93,447.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,475.68 : 159,320.16 = 67,731.04 : x
  2. Step 2: Convert to fraction form
    115,475.68/159,320.16 = 67,731.04/x
  3. Step 3: Cross multiply
    115,475.68x = 159,320.16 × 67,731.04
  4. Step 4: Simplify right side
    115,475.68x = 10,790,920,129.77
  5. Step 5: Solve for x
    x = 10,790,920,129.77/115,475.68
  6. Step 6: Final answer
    x = 93,447.56

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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.