Home / 109,217.91-163,808.64-30,340.11

Finding the Fourth Proportional to 109,217.91, 163,808.64 and 30,340.11

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Solution

The fourth proportional to 109,217.91, 163,808.64 and 30,340.11 is: 45,505.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,217.91 : 163,808.64 = 30,340.11 : x
  2. Step 2: Convert to fraction form
    109,217.91/163,808.64 = 30,340.11/x
  3. Step 3: Cross multiply
    109,217.91x = 163,808.64 × 30,340.11
  4. Step 4: Simplify right side
    109,217.91x = 4,969,972,156.55
  5. Step 5: Solve for x
    x = 4,969,972,156.55/109,217.91
  6. Step 6: Final answer
    x = 45,505.10

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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.