Home / 115,254.65-158,982.88-89,720.60

Finding the Fourth Proportional to 115,254.65, 158,982.88 and 89,720.60

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Solution

The fourth proportional to 115,254.65, 158,982.88 and 89,720.60 is: 123,761.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,254.65 : 158,982.88 = 89,720.60 : x
  2. Step 2: Convert to fraction form
    115,254.65/158,982.88 = 89,720.60/x
  3. Step 3: Cross multiply
    115,254.65x = 158,982.88 × 89,720.60
  4. Step 4: Simplify right side
    115,254.65x = 14,264,038,934.73
  5. Step 5: Solve for x
    x = 14,264,038,934.73/115,254.65
  6. Step 6: Final answer
    x = 123,761.07

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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.