Home / 109,154.25-163,642.68-49,138.65

Finding the Fourth Proportional to 109,154.25, 163,642.68 and 49,138.65

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Solution

The fourth proportional to 109,154.25, 163,642.68 and 49,138.65 is: 73,668.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,154.25 : 163,642.68 = 49,138.65 : x
  2. Step 2: Convert to fraction form
    109,154.25/163,642.68 = 49,138.65/x
  3. Step 3: Cross multiply
    109,154.25x = 163,642.68 × 49,138.65
  4. Step 4: Simplify right side
    109,154.25x = 8,041,180,377.58
  5. Step 5: Solve for x
    x = 8,041,180,377.58/109,154.25
  6. Step 6: Final answer
    x = 73,668.05

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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.