Home / 141,436.80-195,134.22-87,702.48

Finding the Fourth Proportional to 141,436.80, 195,134.22 and 87,702.48

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Solution

The fourth proportional to 141,436.80, 195,134.22 and 87,702.48 is: 120,999.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,436.80 : 195,134.22 = 87,702.48 : x
  2. Step 2: Convert to fraction form
    141,436.80/195,134.22 = 87,702.48/x
  3. Step 3: Cross multiply
    141,436.80x = 195,134.22 × 87,702.48
  4. Step 4: Simplify right side
    141,436.80x = 17,113,755,026.87
  5. Step 5: Solve for x
    x = 17,113,755,026.87/141,436.80
  6. Step 6: Final answer
    x = 120,999.31

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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.