Home / 113,902.04-170,755.80-80,517.08

Finding the Fourth Proportional to 113,902.04, 170,755.80 and 80,517.08

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Solution

The fourth proportional to 113,902.04, 170,755.80 and 80,517.08 is: 120,706.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,902.04 : 170,755.80 = 80,517.08 : x
  2. Step 2: Convert to fraction form
    113,902.04/170,755.80 = 80,517.08/x
  3. Step 3: Cross multiply
    113,902.04x = 170,755.80 × 80,517.08
  4. Step 4: Simplify right side
    113,902.04x = 13,748,758,409.06
  5. Step 5: Solve for x
    x = 13,748,758,409.06/113,902.04
  6. Step 6: Final answer
    x = 120,706.87

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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.