Home / 141,921.76-195,853.36-78,261.84

Finding the Fourth Proportional to 141,921.76, 195,853.36 and 78,261.84

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Solution

The fourth proportional to 141,921.76, 195,853.36 and 78,261.84 is: 108,002.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,921.76 : 195,853.36 = 78,261.84 : x
  2. Step 2: Convert to fraction form
    141,921.76/195,853.36 = 78,261.84/x
  3. Step 3: Cross multiply
    141,921.76x = 195,853.36 × 78,261.84
  4. Step 4: Simplify right side
    141,921.76x = 15,327,844,323.78
  5. Step 5: Solve for x
    x = 15,327,844,323.78/141,921.76
  6. Step 6: Final answer
    x = 108,002.07

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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.