Home / 121,432.96-182,211.41-81,907.19

Finding the Fourth Proportional to 121,432.96, 182,211.41 and 81,907.19

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Solution

The fourth proportional to 121,432.96, 182,211.41 and 81,907.19 is: 122,902.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,432.96 : 182,211.41 = 81,907.19 : x
  2. Step 2: Convert to fraction form
    121,432.96/182,211.41 = 81,907.19/x
  3. Step 3: Cross multiply
    121,432.96x = 182,211.41 × 81,907.19
  4. Step 4: Simplify right side
    121,432.96x = 14,924,424,579.04
  5. Step 5: Solve for x
    x = 14,924,424,579.04/121,432.96
  6. Step 6: Final answer
    x = 122,902.58

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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.