Home / 122,575.89-169,174.79-102,125.52

Finding the Fourth Proportional to 122,575.89, 169,174.79 and 102,125.52

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Solution

The fourth proportional to 122,575.89, 169,174.79 and 102,125.52 is: 140,949.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,575.89 : 169,174.79 = 102,125.52 : x
  2. Step 2: Convert to fraction form
    122,575.89/169,174.79 = 102,125.52/x
  3. Step 3: Cross multiply
    122,575.89x = 169,174.79 × 102,125.52
  4. Step 4: Simplify right side
    122,575.89x = 17,277,062,889.01
  5. Step 5: Solve for x
    x = 17,277,062,889.01/122,575.89
  6. Step 6: Final answer
    x = 140,949.93

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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.