Home / 150,531.13-207,731.25-86,867.56

Finding the Fourth Proportional to 150,531.13, 207,731.25 and 86,867.56

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Solution

The fourth proportional to 150,531.13, 207,731.25 and 86,867.56 is: 119,876.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,531.13 : 207,731.25 = 86,867.56 : x
  2. Step 2: Convert to fraction form
    150,531.13/207,731.25 = 86,867.56/x
  3. Step 3: Cross multiply
    150,531.13x = 207,731.25 × 86,867.56
  4. Step 4: Simplify right side
    150,531.13x = 18,045,106,823.25
  5. Step 5: Solve for x
    x = 18,045,106,823.25/150,531.13
  6. Step 6: Final answer
    x = 119,876.25

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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.