Home / 140,304.96-193,617.72-76,643.04

Finding the Fourth Proportional to 140,304.96, 193,617.72 and 76,643.04

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Solution

The fourth proportional to 140,304.96, 193,617.72 and 76,643.04 is: 105,765.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,304.96 : 193,617.72 = 76,643.04 : x
  2. Step 2: Convert to fraction form
    140,304.96/193,617.72 = 76,643.04/x
  3. Step 3: Cross multiply
    140,304.96x = 193,617.72 × 76,643.04
  4. Step 4: Simplify right side
    140,304.96x = 14,839,450,658.67
  5. Step 5: Solve for x
    x = 14,839,450,658.67/140,304.96
  6. Step 6: Final answer
    x = 105,765.69

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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.