Home / 109,132.20-163,642.89-49,917.12

Finding the Fourth Proportional to 109,132.20, 163,642.89 and 49,917.12

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Solution

The fourth proportional to 109,132.20, 163,642.89 and 49,917.12 is: 74,850.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,132.20 : 163,642.89 = 49,917.12 : x
  2. Step 2: Convert to fraction form
    109,132.20/163,642.89 = 49,917.12/x
  3. Step 3: Cross multiply
    109,132.20x = 163,642.89 × 49,917.12
  4. Step 4: Simplify right side
    109,132.20x = 8,168,581,777.28
  5. Step 5: Solve for x
    x = 8,168,581,777.28/109,132.20
  6. Step 6: Final answer
    x = 74,850.34

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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.