Home / 121,764.20-182,675.10-38,658.20

Finding the Fourth Proportional to 121,764.20, 182,675.10 and 38,658.20

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Solution

The fourth proportional to 121,764.20, 182,675.10 and 38,658.20 is: 57,996.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,764.20 : 182,675.10 = 38,658.20 : x
  2. Step 2: Convert to fraction form
    121,764.20/182,675.10 = 38,658.20/x
  3. Step 3: Cross multiply
    121,764.20x = 182,675.10 × 38,658.20
  4. Step 4: Simplify right side
    121,764.20x = 7,061,890,550.82
  5. Step 5: Solve for x
    x = 7,061,890,550.82/121,764.20
  6. Step 6: Final answer
    x = 57,996.44

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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.