Home / 141,877.30-195,792.04-78,217.42

Finding the Fourth Proportional to 141,877.30, 195,792.04 and 78,217.42

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Solution

The fourth proportional to 141,877.30, 195,792.04 and 78,217.42 is: 107,940.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,877.30 : 195,792.04 = 78,217.42 : x
  2. Step 2: Convert to fraction form
    141,877.30/195,792.04 = 78,217.42/x
  3. Step 3: Cross multiply
    141,877.30x = 195,792.04 × 78,217.42
  4. Step 4: Simplify right side
    141,877.30x = 15,314,348,225.34
  5. Step 5: Solve for x
    x = 15,314,348,225.34/141,877.30
  6. Step 6: Final answer
    x = 107,940.79

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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.