Home / 109,132.11-163,696.95-30,243.42

Finding the Fourth Proportional to 109,132.11, 163,696.95 and 30,243.42

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Solution

The fourth proportional to 109,132.11, 163,696.95 and 30,243.42 is: 45,364.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,132.11 : 163,696.95 = 30,243.42 : x
  2. Step 2: Convert to fraction form
    109,132.11/163,696.95 = 30,243.42/x
  3. Step 3: Cross multiply
    109,132.11x = 163,696.95 × 30,243.42
  4. Step 4: Simplify right side
    109,132.11x = 4,950,755,611.57
  5. Step 5: Solve for x
    x = 4,950,755,611.57/109,132.11
  6. Step 6: Final answer
    x = 45,364.79

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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.