Home / 122,812.13-169,479.54-68,363.43

Finding the Fourth Proportional to 122,812.13, 169,479.54 and 68,363.43

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Solution

The fourth proportional to 122,812.13, 169,479.54 and 68,363.43 is: 94,340.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,812.13 : 169,479.54 = 68,363.43 : x
  2. Step 2: Convert to fraction form
    122,812.13/169,479.54 = 68,363.43/x
  3. Step 3: Cross multiply
    122,812.13x = 169,479.54 × 68,363.43
  4. Step 4: Simplify right side
    122,812.13x = 11,586,202,624.71
  5. Step 5: Solve for x
    x = 11,586,202,624.71/122,812.13
  6. Step 6: Final answer
    x = 94,340.87

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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.