Home / 150,568.01-207,801.20-90,138.63

Finding the Fourth Proportional to 150,568.01, 207,801.20 and 90,138.63

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Solution

The fourth proportional to 150,568.01, 207,801.20 and 90,138.63 is: 124,401.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,568.01 : 207,801.20 = 90,138.63 : x
  2. Step 2: Convert to fraction form
    150,568.01/207,801.20 = 90,138.63/x
  3. Step 3: Cross multiply
    150,568.01x = 207,801.20 × 90,138.63
  4. Step 4: Simplify right side
    150,568.01x = 18,730,915,480.36
  5. Step 5: Solve for x
    x = 18,730,915,480.36/150,568.01
  6. Step 6: Final answer
    x = 124,401.69

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1.5x scale

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.