Home / 141,886.89-195,799.88-78,224.74

Finding the Fourth Proportional to 141,886.89, 195,799.88 and 78,224.74

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Solution

The fourth proportional to 141,886.89, 195,799.88 and 78,224.74 is: 107,947.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,886.89 : 195,799.88 = 78,224.74 : x
  2. Step 2: Convert to fraction form
    141,886.89/195,799.88 = 78,224.74/x
  3. Step 3: Cross multiply
    141,886.89x = 195,799.88 × 78,224.74
  4. Step 4: Simplify right side
    141,886.89x = 15,316,394,411.09
  5. Step 5: Solve for x
    x = 15,316,394,411.09/141,886.89
  6. Step 6: Final answer
    x = 107,947.92

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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.