Home / 122,456.16-168,976.56-68,742.24

Finding the Fourth Proportional to 122,456.16, 168,976.56 and 68,742.24

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Solution

The fourth proportional to 122,456.16, 168,976.56 and 68,742.24 is: 94,857.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,456.16 : 168,976.56 = 68,742.24 : x
  2. Step 2: Convert to fraction form
    122,456.16/168,976.56 = 68,742.24/x
  3. Step 3: Cross multiply
    122,456.16x = 168,976.56 × 68,742.24
  4. Step 4: Simplify right side
    122,456.16x = 11,615,827,241.89
  5. Step 5: Solve for x
    x = 11,615,827,241.89/122,456.16
  6. Step 6: Final answer
    x = 94,857.03

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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.