Home / 113,891.20-170,909.70-66,506.20

Finding the Fourth Proportional to 113,891.20, 170,909.70 and 66,506.20

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Solution

The fourth proportional to 113,891.20, 170,909.70 and 66,506.20 is: 99,801.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,891.20 : 170,909.70 = 66,506.20 : x
  2. Step 2: Convert to fraction form
    113,891.20/170,909.70 = 66,506.20/x
  3. Step 3: Cross multiply
    113,891.20x = 170,909.70 × 66,506.20
  4. Step 4: Simplify right side
    113,891.20x = 11,366,554,690.14
  5. Step 5: Solve for x
    x = 11,366,554,690.14/113,891.20
  6. Step 6: Final answer
    x = 99,801.87

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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.