Home / 109,109.26-163,591.39-42,555.61

Finding the Fourth Proportional to 109,109.26, 163,591.39 and 42,555.61

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Solution

The fourth proportional to 109,109.26, 163,591.39 and 42,555.61 is: 63,805.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,109.26 : 163,591.39 = 42,555.61 : x
  2. Step 2: Convert to fraction form
    109,109.26/163,591.39 = 42,555.61/x
  3. Step 3: Cross multiply
    109,109.26x = 163,591.39 × 42,555.61
  4. Step 4: Simplify right side
    109,109.26x = 6,961,731,392.20
  5. Step 5: Solve for x
    x = 6,961,731,392.20/109,109.26
  6. Step 6: Final answer
    x = 63,805.14

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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.