Home / 122,556.88-169,122-68,844.16

Finding the Fourth Proportional to 122,556.88, 169,122 and 68,844.16

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Solution

The fourth proportional to 122,556.88, 169,122 and 68,844.16 is: 95,001.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,556.88 : 169,122 = 68,844.16 : x
  2. Step 2: Convert to fraction form
    122,556.88/169,122 = 68,844.16/x
  3. Step 3: Cross multiply
    122,556.88x = 169,122 × 68,844.16
  4. Step 4: Simplify right side
    122,556.88x = 11,643,062,027.52
  5. Step 5: Solve for x
    x = 11,643,062,027.52/122,556.88
  6. Step 6: Final answer
    x = 95,001.29

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1.5x scale

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.