Home / 141,827.81-195,721.97-78,165.59

Finding the Fourth Proportional to 141,827.81, 195,721.97 and 78,165.59

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Solution

The fourth proportional to 141,827.81, 195,721.97 and 78,165.59 is: 107,868.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,827.81 : 195,721.97 = 78,165.59 : x
  2. Step 2: Convert to fraction form
    141,827.81/195,721.97 = 78,165.59/x
  3. Step 3: Cross multiply
    141,827.81x = 195,721.97 × 78,165.59
  4. Step 4: Simplify right side
    141,827.81x = 15,298,721,891.57
  5. Step 5: Solve for x
    x = 15,298,721,891.57/141,827.81
  6. Step 6: Final answer
    x = 107,868.28

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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.