Home / 141,769.06-195,641.87-78,106.86

Finding the Fourth Proportional to 141,769.06, 195,641.87 and 78,106.86

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Solution

The fourth proportional to 141,769.06, 195,641.87 and 78,106.86 is: 107,787.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,769.06 : 195,641.87 = 78,106.86 : x
  2. Step 2: Convert to fraction form
    141,769.06/195,641.87 = 78,106.86/x
  3. Step 3: Cross multiply
    141,769.06x = 195,641.87 × 78,106.86
  4. Step 4: Simplify right side
    141,769.06x = 15,280,971,759.69
  5. Step 5: Solve for x
    x = 15,280,971,759.69/141,769.06
  6. Step 6: Final answer
    x = 107,787.78

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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.