Home / 105,974.28-146,159.85-69,712.95

Finding the Fourth Proportional to 105,974.28, 146,159.85 and 69,712.95

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Solution

The fourth proportional to 105,974.28, 146,159.85 and 69,712.95 is: 96,148.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,974.28 : 146,159.85 = 69,712.95 : x
  2. Step 2: Convert to fraction form
    105,974.28/146,159.85 = 69,712.95/x
  3. Step 3: Cross multiply
    105,974.28x = 146,159.85 × 69,712.95
  4. Step 4: Simplify right side
    105,974.28x = 10,189,234,315.06
  5. Step 5: Solve for x
    x = 10,189,234,315.06/105,974.28
  6. Step 6: Final answer
    x = 96,148.18

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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.