Home / 140,449.17-193,821.75-76,786.82

Finding the Fourth Proportional to 140,449.17, 193,821.75 and 76,786.82

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Solution

The fourth proportional to 140,449.17, 193,821.75 and 76,786.82 is: 105,966.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,449.17 : 193,821.75 = 76,786.82 : x
  2. Step 2: Convert to fraction form
    140,449.17/193,821.75 = 76,786.82/x
  3. Step 3: Cross multiply
    140,449.17x = 193,821.75 × 76,786.82
  4. Step 4: Simplify right side
    140,449.17x = 14,882,955,829.34
  5. Step 5: Solve for x
    x = 14,882,955,829.34/140,449.17
  6. Step 6: Final answer
    x = 105,966.85

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1.5x scale

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.