Home / 115,445.40-159,350.94-67,718.04

Finding the Fourth Proportional to 115,445.40, 159,350.94 and 67,718.04

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Solution

The fourth proportional to 115,445.40, 159,350.94 and 67,718.04 is: 93,472.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,445.40 : 159,350.94 = 67,718.04 : x
  2. Step 2: Convert to fraction form
    115,445.40/159,350.94 = 67,718.04/x
  3. Step 3: Cross multiply
    115,445.40x = 159,350.94 × 67,718.04
  4. Step 4: Simplify right side
    115,445.40x = 10,790,933,328.96
  5. Step 5: Solve for x
    x = 10,790,933,328.96/115,445.40
  6. Step 6: Final answer
    x = 93,472.18

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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.