Home / 140,429.40-193,792.62-76,767.18

Finding the Fourth Proportional to 140,429.40, 193,792.62 and 76,767.18

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Solution

The fourth proportional to 140,429.40, 193,792.62 and 76,767.18 is: 105,938.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,429.40 : 193,792.62 = 76,767.18 : x
  2. Step 2: Convert to fraction form
    140,429.40/193,792.62 = 76,767.18/x
  3. Step 3: Cross multiply
    140,429.40x = 193,792.62 × 76,767.18
  4. Step 4: Simplify right side
    140,429.40x = 14,876,912,942.21
  5. Step 5: Solve for x
    x = 14,876,912,942.21/140,429.40
  6. Step 6: Final answer
    x = 105,938.73

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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.