Home / 140,429.12-193,792.28-76,766.94

Finding the Fourth Proportional to 140,429.12, 193,792.28 and 76,766.94

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Solution

The fourth proportional to 140,429.12, 193,792.28 and 76,766.94 is: 105,938.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,429.12 : 193,792.28 = 76,766.94 : x
  2. Step 2: Convert to fraction form
    140,429.12/193,792.28 = 76,766.94/x
  3. Step 3: Cross multiply
    140,429.12x = 193,792.28 × 76,766.94
  4. Step 4: Simplify right side
    140,429.12x = 14,876,840,331.22
  5. Step 5: Solve for x
    x = 14,876,840,331.22/140,429.12
  6. Step 6: Final answer
    x = 105,938.43

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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.