Home / 150,668.15-207,906.89-90,237.20

Finding the Fourth Proportional to 150,668.15, 207,906.89 and 90,237.20

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Solution

The fourth proportional to 150,668.15, 207,906.89 and 90,237.20 is: 124,518.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,668.15 : 207,906.89 = 90,237.20 : x
  2. Step 2: Convert to fraction form
    150,668.15/207,906.89 = 90,237.20/x
  3. Step 3: Cross multiply
    150,668.15x = 207,906.89 × 90,237.20
  4. Step 4: Simplify right side
    150,668.15x = 18,760,934,123.59
  5. Step 5: Solve for x
    x = 18,760,934,123.59/150,668.15
  6. Step 6: Final answer
    x = 124,518.25

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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.