Home / 100,689.20-151,033.14-34,176.18

Finding the Fourth Proportional to 100,689.20, 151,033.14 and 34,176.18

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Solution

The fourth proportional to 100,689.20, 151,033.14 and 34,176.18 is: 51,264.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,689.20 : 151,033.14 = 34,176.18 : x
  2. Step 2: Convert to fraction form
    100,689.20/151,033.14 = 34,176.18/x
  3. Step 3: Cross multiply
    100,689.20x = 151,033.14 × 34,176.18
  4. Step 4: Simplify right side
    100,689.20x = 5,161,735,778.61
  5. Step 5: Solve for x
    x = 5,161,735,778.61/100,689.20
  6. Step 6: Final answer
    x = 51,264.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.