Home / 105,052.20-157,554.26-30,171.76

Finding the Fourth Proportional to 105,052.20, 157,554.26 and 30,171.76

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Solution

The fourth proportional to 105,052.20, 157,554.26 and 30,171.76 is: 45,250.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,052.20 : 157,554.26 = 30,171.76 : x
  2. Step 2: Convert to fraction form
    105,052.20/157,554.26 = 30,171.76/x
  3. Step 3: Cross multiply
    105,052.20x = 157,554.26 × 30,171.76
  4. Step 4: Simplify right side
    105,052.20x = 4,753,689,319.70
  5. Step 5: Solve for x
    x = 4,753,689,319.70/105,052.20
  6. Step 6: Final answer
    x = 45,250.74

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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.