Home / 99,649.62-149,334.55-54,555.04

Finding the Fourth Proportional to 99,649.62, 149,334.55 and 54,555.04

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Solution

The fourth proportional to 99,649.62, 149,334.55 and 54,555.04 is: 81,755.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,649.62 : 149,334.55 = 54,555.04 : x
  2. Step 2: Convert to fraction form
    99,649.62/149,334.55 = 54,555.04/x
  3. Step 3: Cross multiply
    99,649.62x = 149,334.55 × 54,555.04
  4. Step 4: Simplify right side
    99,649.62x = 8,146,952,348.63
  5. Step 5: Solve for x
    x = 8,146,952,348.63/99,649.62
  6. Step 6: Final answer
    x = 81,755.98

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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.