Home / 99,977.20-149,909.10-40,743.52

Finding the Fourth Proportional to 99,977.20, 149,909.10 and 40,743.52

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Solution

The fourth proportional to 99,977.20, 149,909.10 and 40,743.52 is: 61,092.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,977.20 : 149,909.10 = 40,743.52 : x
  2. Step 2: Convert to fraction form
    99,977.20/149,909.10 = 40,743.52/x
  3. Step 3: Cross multiply
    99,977.20x = 149,909.10 × 40,743.52
  4. Step 4: Simplify right side
    99,977.20x = 6,107,824,414.03
  5. Step 5: Solve for x
    x = 6,107,824,414.03/99,977.20
  6. Step 6: Final answer
    x = 61,092.17

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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.