Home / 141,440.77-195,189.65-77,779

Finding the Fourth Proportional to 141,440.77, 195,189.65 and 77,779

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Solution

The fourth proportional to 141,440.77, 195,189.65 and 77,779 is: 107,335.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,440.77 : 195,189.65 = 77,779 : x
  2. Step 2: Convert to fraction form
    141,440.77/195,189.65 = 77,779/x
  3. Step 3: Cross multiply
    141,440.77x = 195,189.65 × 77,779
  4. Step 4: Simplify right side
    141,440.77x = 15,181,655,787.35
  5. Step 5: Solve for x
    x = 15,181,655,787.35/141,440.77
  6. Step 6: Final answer
    x = 107,335.78

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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.