Home / 122,795.52-169,481.02-76,876.51

Finding the Fourth Proportional to 122,795.52, 169,481.02 and 76,876.51

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Solution

The fourth proportional to 122,795.52, 169,481.02 and 76,876.51 is: 106,104.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,795.52 : 169,481.02 = 76,876.51 : x
  2. Step 2: Convert to fraction form
    122,795.52/169,481.02 = 76,876.51/x
  3. Step 3: Cross multiply
    122,795.52x = 169,481.02 × 76,876.51
  4. Step 4: Simplify right side
    122,795.52x = 13,029,109,328.84
  5. Step 5: Solve for x
    x = 13,029,109,328.84/122,795.52
  6. Step 6: Final answer
    x = 106,104.11

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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.