Home / 109,310.63-163,965.94-30,426.91

Finding the Fourth Proportional to 109,310.63, 163,965.94 and 30,426.91

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Solution

The fourth proportional to 109,310.63, 163,965.94 and 30,426.91 is: 45,640.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,310.63 : 163,965.94 = 30,426.91 : x
  2. Step 2: Convert to fraction form
    109,310.63/163,965.94 = 30,426.91/x
  3. Step 3: Cross multiply
    109,310.63x = 163,965.94 × 30,426.91
  4. Step 4: Simplify right side
    109,310.63x = 4,988,976,413.46
  5. Step 5: Solve for x
    x = 4,988,976,413.46/109,310.63
  6. Step 6: Final answer
    x = 45,640.36

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Similar ratio
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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.