Home / 113,514.58-156,654.28-70,517.78

Finding the Fourth Proportional to 113,514.58, 156,654.28 and 70,517.78

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Solution

The fourth proportional to 113,514.58, 156,654.28 and 70,517.78 is: 97,317.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,514.58 : 156,654.28 = 70,517.78 : x
  2. Step 2: Convert to fraction form
    113,514.58/156,654.28 = 70,517.78/x
  3. Step 3: Cross multiply
    113,514.58x = 156,654.28 × 70,517.78
  4. Step 4: Simplify right side
    113,514.58x = 11,046,912,053.10
  5. Step 5: Solve for x
    x = 11,046,912,053.10/113,514.58
  6. Step 6: Final answer
    x = 97,317.12

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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.