Home / 113,839.20-170,776.80-38,966.40

Finding the Fourth Proportional to 113,839.20, 170,776.80 and 38,966.40

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Solution

The fourth proportional to 113,839.20, 170,776.80 and 38,966.40 is: 58,455.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,839.20 : 170,776.80 = 38,966.40 : x
  2. Step 2: Convert to fraction form
    113,839.20/170,776.80 = 38,966.40/x
  3. Step 3: Cross multiply
    113,839.20x = 170,776.80 × 38,966.40
  4. Step 4: Simplify right side
    113,839.20x = 6,654,557,099.52
  5. Step 5: Solve for x
    x = 6,654,557,099.52/113,839.20
  6. Step 6: Final answer
    x = 58,455.76

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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.