Home / 121,421.82-182,125.44-45,505.38

Finding the Fourth Proportional to 121,421.82, 182,125.44 and 45,505.38

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Solution

The fourth proportional to 121,421.82, 182,125.44 and 45,505.38 is: 68,255.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,421.82 : 182,125.44 = 45,505.38 : x
  2. Step 2: Convert to fraction form
    121,421.82/182,125.44 = 45,505.38/x
  3. Step 3: Cross multiply
    121,421.82x = 182,125.44 × 45,505.38
  4. Step 4: Simplify right side
    121,421.82x = 8,287,687,354.87
  5. Step 5: Solve for x
    x = 8,287,687,354.87/121,421.82
  6. Step 6: Final answer
    x = 68,255.34

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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.