Home / 105,426.11-158,139.17-30,546.31

Finding the Fourth Proportional to 105,426.11, 158,139.17 and 30,546.31

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Solution

The fourth proportional to 105,426.11, 158,139.17 and 30,546.31 is: 45,819.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,426.11 : 158,139.17 = 30,546.31 : x
  2. Step 2: Convert to fraction form
    105,426.11/158,139.17 = 30,546.31/x
  3. Step 3: Cross multiply
    105,426.11x = 158,139.17 × 30,546.31
  4. Step 4: Simplify right side
    105,426.11x = 4,830,567,700.00
  5. Step 5: Solve for x
    x = 4,830,567,700.00/105,426.11
  6. Step 6: Final answer
    x = 45,819.46

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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.