Home / 105,882.24-146,119.20-58,140

Finding the Fourth Proportional to 105,882.24, 146,119.20 and 58,140

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Solution

The fourth proportional to 105,882.24, 146,119.20 and 58,140 is: 80,234.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,882.24 : 146,119.20 = 58,140 : x
  2. Step 2: Convert to fraction form
    105,882.24/146,119.20 = 58,140/x
  3. Step 3: Cross multiply
    105,882.24x = 146,119.20 × 58,140
  4. Step 4: Simplify right side
    105,882.24x = 8,495,370,288.00
  5. Step 5: Solve for x
    x = 8,495,370,288.00/105,882.24
  6. Step 6: Final answer
    x = 80,234.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.