Home / 113,853.20-170,909.40-67,132.40

Finding the Fourth Proportional to 113,853.20, 170,909.40 and 67,132.40

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Solution

The fourth proportional to 113,853.20, 170,909.40 and 67,132.40 is: 100,775.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,853.20 : 170,909.40 = 67,132.40 : x
  2. Step 2: Convert to fraction form
    113,853.20/170,909.40 = 67,132.40/x
  3. Step 3: Cross multiply
    113,853.20x = 170,909.40 × 67,132.40
  4. Step 4: Simplify right side
    113,853.20x = 11,473,558,204.56
  5. Step 5: Solve for x
    x = 11,473,558,204.56/113,853.20
  6. Step 6: Final answer
    x = 100,775.02

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1.5x scale

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.