Home / 141,877.24-195,792.10-78,217.31

Finding the Fourth Proportional to 141,877.24, 195,792.10 and 78,217.31

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Solution

The fourth proportional to 141,877.24, 195,792.10 and 78,217.31 is: 107,940.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,877.24 : 195,792.10 = 78,217.31 : x
  2. Step 2: Convert to fraction form
    141,877.24/195,792.10 = 78,217.31/x
  3. Step 3: Cross multiply
    141,877.24x = 195,792.10 × 78,217.31
  4. Step 4: Simplify right side
    141,877.24x = 15,314,331,675.19
  5. Step 5: Solve for x
    x = 15,314,331,675.19/141,877.24
  6. Step 6: Final answer
    x = 107,940.72

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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.