Home / 129,335.40-194,002.74-40,589.28

Finding the Fourth Proportional to 129,335.40, 194,002.74 and 40,589.28

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Solution

The fourth proportional to 129,335.40, 194,002.74 and 40,589.28 is: 60,883.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,335.40 : 194,002.74 = 40,589.28 : x
  2. Step 2: Convert to fraction form
    129,335.40/194,002.74 = 40,589.28/x
  3. Step 3: Cross multiply
    129,335.40x = 194,002.74 × 40,589.28
  4. Step 4: Simplify right side
    129,335.40x = 7,874,431,534.63
  5. Step 5: Solve for x
    x = 7,874,431,534.63/129,335.40
  6. Step 6: Final answer
    x = 60,883.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.