Home / 113,764.75-170,514.25-85,594.30

Finding the Fourth Proportional to 113,764.75, 170,514.25 and 85,594.30

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Solution

The fourth proportional to 113,764.75, 170,514.25 and 85,594.30 is: 128,291.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,764.75 : 170,514.25 = 85,594.30 : x
  2. Step 2: Convert to fraction form
    113,764.75/170,514.25 = 85,594.30/x
  3. Step 3: Cross multiply
    113,764.75x = 170,514.25 × 85,594.30
  4. Step 4: Simplify right side
    113,764.75x = 14,595,047,868.78
  5. Step 5: Solve for x
    x = 14,595,047,868.78/113,764.75
  6. Step 6: Final answer
    x = 128,291.48

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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.