Home / 122,811.89-169,478.07-68,363.69

Finding the Fourth Proportional to 122,811.89, 169,478.07 and 68,363.69

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Solution

The fourth proportional to 122,811.89, 169,478.07 and 68,363.69 is: 94,340.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,811.89 : 169,478.07 = 68,363.69 : x
  2. Step 2: Convert to fraction form
    122,811.89/169,478.07 = 68,363.69/x
  3. Step 3: Cross multiply
    122,811.89x = 169,478.07 × 68,363.69
  4. Step 4: Simplify right side
    122,811.89x = 11,586,145,391.89
  5. Step 5: Solve for x
    x = 11,586,145,391.89/122,811.89
  6. Step 6: Final answer
    x = 94,340.59

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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.