Home / 109,316.52-163,974.78-30,436.92

Finding the Fourth Proportional to 109,316.52, 163,974.78 and 30,436.92

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Solution

The fourth proportional to 109,316.52, 163,974.78 and 30,436.92 is: 45,655.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,316.52 : 163,974.78 = 30,436.92 : x
  2. Step 2: Convert to fraction form
    109,316.52/163,974.78 = 30,436.92/x
  3. Step 3: Cross multiply
    109,316.52x = 163,974.78 × 30,436.92
  4. Step 4: Simplify right side
    109,316.52x = 4,990,887,260.88
  5. Step 5: Solve for x
    x = 4,990,887,260.88/109,316.52
  6. Step 6: Final answer
    x = 45,655.38

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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.