Home / 129,718.80-194,598.45-40,963.86

Finding the Fourth Proportional to 129,718.80, 194,598.45 and 40,963.86

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Solution

The fourth proportional to 129,718.80, 194,598.45 and 40,963.86 is: 61,452.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,718.80 : 194,598.45 = 40,963.86 : x
  2. Step 2: Convert to fraction form
    129,718.80/194,598.45 = 40,963.86/x
  3. Step 3: Cross multiply
    129,718.80x = 194,598.45 × 40,963.86
  4. Step 4: Simplify right side
    129,718.80x = 7,971,503,662.02
  5. Step 5: Solve for x
    x = 7,971,503,662.02/129,718.80
  6. Step 6: Final answer
    x = 61,452.18

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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.