Home / 105,046.20-157,545.27-30,165.75

Finding the Fourth Proportional to 105,046.20, 157,545.27 and 30,165.75

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Solution

The fourth proportional to 105,046.20, 157,545.27 and 30,165.75 is: 45,241.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,046.20 : 157,545.27 = 30,165.75 : x
  2. Step 2: Convert to fraction form
    105,046.20/157,545.27 = 30,165.75/x
  3. Step 3: Cross multiply
    105,046.20x = 157,545.27 × 30,165.75
  4. Step 4: Simplify right side
    105,046.20x = 4,752,471,228.50
  5. Step 5: Solve for x
    x = 4,752,471,228.50/105,046.20
  6. Step 6: Final answer
    x = 45,241.72

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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.