Home / 140,304.91-193,617.63-76,642.96

Finding the Fourth Proportional to 140,304.91, 193,617.63 and 76,642.96

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Solution

The fourth proportional to 140,304.91, 193,617.63 and 76,642.96 is: 105,765.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,304.91 : 193,617.63 = 76,642.96 : x
  2. Step 2: Convert to fraction form
    140,304.91/193,617.63 = 76,642.96/x
  3. Step 3: Cross multiply
    140,304.91x = 193,617.63 × 76,642.96
  4. Step 4: Simplify right side
    140,304.91x = 14,839,428,271.38
  5. Step 5: Solve for x
    x = 14,839,428,271.38/140,304.91
  6. Step 6: Final answer
    x = 105,765.57

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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.