Home / 78,868.08-108,770.04-70,265.88

Finding the Fourth Proportional to 78,868.08, 108,770.04 and 70,265.88

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Solution

The fourth proportional to 78,868.08, 108,770.04 and 70,265.88 is: 96,906.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,868.08 : 108,770.04 = 70,265.88 : x
  2. Step 2: Convert to fraction form
    78,868.08/108,770.04 = 70,265.88/x
  3. Step 3: Cross multiply
    78,868.08x = 108,770.04 × 70,265.88
  4. Step 4: Simplify right side
    78,868.08x = 7,642,822,578.24
  5. Step 5: Solve for x
    x = 7,642,822,578.24/78,868.08
  6. Step 6: Final answer
    x = 96,906.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.