Home / 260,902.80-391,261.98-124,109.79

Finding the Fourth Proportional to 260,902.80, 391,261.98 and 124,109.79

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Solution

The fourth proportional to 260,902.80, 391,261.98 and 124,109.79 is: 186,120.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,902.80 : 391,261.98 = 124,109.79 : x
  2. Step 2: Convert to fraction form
    260,902.80/391,261.98 = 124,109.79/x
  3. Step 3: Cross multiply
    260,902.80x = 391,261.98 × 124,109.79
  4. Step 4: Simplify right side
    260,902.80x = 48,559,442,172.78
  5. Step 5: Solve for x
    x = 48,559,442,172.78/260,902.80
  6. Step 6: Final answer
    x = 186,120.82

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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.