Home / 140,304.42-193,616.94-76,642.47

Finding the Fourth Proportional to 140,304.42, 193,616.94 and 76,642.47

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Solution

The fourth proportional to 140,304.42, 193,616.94 and 76,642.47 is: 105,764.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,304.42 : 193,616.94 = 76,642.47 : x
  2. Step 2: Convert to fraction form
    140,304.42/193,616.94 = 76,642.47/x
  3. Step 3: Cross multiply
    140,304.42x = 193,616.94 × 76,642.47
  4. Step 4: Simplify right side
    140,304.42x = 14,839,280,515.44
  5. Step 5: Solve for x
    x = 14,839,280,515.44/140,304.42
  6. Step 6: Final answer
    x = 105,764.88

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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.