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Finding the Fourth Proportional to 107,585.70, 161,378.55 and 82,751.10

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Solution

The fourth proportional to 107,585.70, 161,378.55 and 82,751.10 is: 124,126.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,585.70 : 161,378.55 = 82,751.10 : x
  2. Step 2: Convert to fraction form
    107,585.70/161,378.55 = 82,751.10/x
  3. Step 3: Cross multiply
    107,585.70x = 161,378.55 × 82,751.10
  4. Step 4: Simplify right side
    107,585.70x = 13,354,252,528.91
  5. Step 5: Solve for x
    x = 13,354,252,528.91/107,585.70
  6. Step 6: Final answer
    x = 124,126.65

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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.