Home / 121,375.78-182,089.68-42,492.58

Finding the Fourth Proportional to 121,375.78, 182,089.68 and 42,492.58

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Solution

The fourth proportional to 121,375.78, 182,089.68 and 42,492.58 is: 63,747.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,375.78 : 182,089.68 = 42,492.58 : x
  2. Step 2: Convert to fraction form
    121,375.78/182,089.68 = 42,492.58/x
  3. Step 3: Cross multiply
    121,375.78x = 182,089.68 × 42,492.58
  4. Step 4: Simplify right side
    121,375.78x = 7,737,460,294.57
  5. Step 5: Solve for x
    x = 7,737,460,294.57/121,375.78
  6. Step 6: Final answer
    x = 63,747.98

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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.