Home / 126,130.78-174,061.84-68,769.64

Finding the Fourth Proportional to 126,130.78, 174,061.84 and 68,769.64

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Solution

The fourth proportional to 126,130.78, 174,061.84 and 68,769.64 is: 94,902.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,130.78 : 174,061.84 = 68,769.64 : x
  2. Step 2: Convert to fraction form
    126,130.78/174,061.84 = 68,769.64/x
  3. Step 3: Cross multiply
    126,130.78x = 174,061.84 × 68,769.64
  4. Step 4: Simplify right side
    126,130.78x = 11,970,169,173.33
  5. Step 5: Solve for x
    x = 11,970,169,173.33/126,130.78
  6. Step 6: Final answer
    x = 94,902.84

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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.