Home / 113,514.44-156,486.29-79,417.28

Finding the Fourth Proportional to 113,514.44, 156,486.29 and 79,417.28

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Solution

The fourth proportional to 113,514.44, 156,486.29 and 79,417.28 is: 109,481.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,514.44 : 156,486.29 = 79,417.28 : x
  2. Step 2: Convert to fraction form
    113,514.44/156,486.29 = 79,417.28/x
  3. Step 3: Cross multiply
    113,514.44x = 156,486.29 × 79,417.28
  4. Step 4: Simplify right side
    113,514.44x = 12,427,715,503.22
  5. Step 5: Solve for x
    x = 12,427,715,503.22/113,514.44
  6. Step 6: Final answer
    x = 109,481.37

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1.5x scale

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.