Home / 99,934.20-137,845.76-76,008.42

Finding the Fourth Proportional to 99,934.20, 137,845.76 and 76,008.42

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Solution

The fourth proportional to 99,934.20, 137,845.76 and 76,008.42 is: 104,843.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,934.20 : 137,845.76 = 76,008.42 : x
  2. Step 2: Convert to fraction form
    99,934.20/137,845.76 = 76,008.42/x
  3. Step 3: Cross multiply
    99,934.20x = 137,845.76 × 76,008.42
  4. Step 4: Simplify right side
    99,934.20x = 10,477,438,421.30
  5. Step 5: Solve for x
    x = 10,477,438,421.30/99,934.20
  6. Step 6: Final answer
    x = 104,843.37

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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.