Home / 150,568.57-207,801.99-90,139.18

Finding the Fourth Proportional to 150,568.57, 207,801.99 and 90,139.18

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Solution

The fourth proportional to 150,568.57, 207,801.99 and 90,139.18 is: 124,402.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,568.57 : 207,801.99 = 90,139.18 : x
  2. Step 2: Convert to fraction form
    150,568.57/207,801.99 = 90,139.18/x
  3. Step 3: Cross multiply
    150,568.57x = 207,801.99 × 90,139.18
  4. Step 4: Simplify right side
    150,568.57x = 18,731,100,980.97
  5. Step 5: Solve for x
    x = 18,731,100,980.97/150,568.57
  6. Step 6: Final answer
    x = 124,402.46

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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.