Home / 141,967.22-195,915.34-78,304.88

Finding the Fourth Proportional to 141,967.22, 195,915.34 and 78,304.88

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Solution

The fourth proportional to 141,967.22, 195,915.34 and 78,304.88 is: 108,061.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,967.22 : 195,915.34 = 78,304.88 : x
  2. Step 2: Convert to fraction form
    141,967.22/195,915.34 = 78,304.88/x
  3. Step 3: Cross multiply
    141,967.22x = 195,915.34 × 78,304.88
  4. Step 4: Simplify right side
    141,967.22x = 15,341,127,188.86
  5. Step 5: Solve for x
    x = 15,341,127,188.86/141,967.22
  6. Step 6: Final answer
    x = 108,061.05

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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.