Home / 99,620.24-149,649.33-60,200.78

Finding the Fourth Proportional to 99,620.24, 149,649.33 and 60,200.78

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Solution

The fourth proportional to 99,620.24, 149,649.33 and 60,200.78 is: 90,433.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,620.24 : 149,649.33 = 60,200.78 : x
  2. Step 2: Convert to fraction form
    99,620.24/149,649.33 = 60,200.78/x
  3. Step 3: Cross multiply
    99,620.24x = 149,649.33 × 60,200.78
  4. Step 4: Simplify right side
    99,620.24x = 9,009,006,392.48
  5. Step 5: Solve for x
    x = 9,009,006,392.48/99,620.24
  6. Step 6: Final answer
    x = 90,433.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.