Home / 113,470.12-156,585.72-63,169.12

Finding the Fourth Proportional to 113,470.12, 156,585.72 and 63,169.12

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Solution

The fourth proportional to 113,470.12, 156,585.72 and 63,169.12 is: 87,171.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,470.12 : 156,585.72 = 63,169.12 : x
  2. Step 2: Convert to fraction form
    113,470.12/156,585.72 = 63,169.12/x
  3. Step 3: Cross multiply
    113,470.12x = 156,585.72 × 63,169.12
  4. Step 4: Simplify right side
    113,470.12x = 9,891,382,136.97
  5. Step 5: Solve for x
    x = 9,891,382,136.97/113,470.12
  6. Step 6: Final answer
    x = 87,171.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.