Home / 141,702.75-195,549.80-78,040.41

Finding the Fourth Proportional to 141,702.75, 195,549.80 and 78,040.41

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Solution

The fourth proportional to 141,702.75, 195,549.80 and 78,040.41 is: 107,695.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,702.75 : 195,549.80 = 78,040.41 : x
  2. Step 2: Convert to fraction form
    141,702.75/195,549.80 = 78,040.41/x
  3. Step 3: Cross multiply
    141,702.75x = 195,549.80 × 78,040.41
  4. Step 4: Simplify right side
    141,702.75x = 15,260,786,177.22
  5. Step 5: Solve for x
    x = 15,260,786,177.22/141,702.75
  6. Step 6: Final answer
    x = 107,695.77

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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.