Home / 140,449.25-193,820.78-76,787.06

Finding the Fourth Proportional to 140,449.25, 193,820.78 and 76,787.06

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Solution

The fourth proportional to 140,449.25, 193,820.78 and 76,787.06 is: 105,966.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,449.25 : 193,820.78 = 76,787.06 : x
  2. Step 2: Convert to fraction form
    140,449.25/193,820.78 = 76,787.06/x
  3. Step 3: Cross multiply
    140,449.25x = 193,820.78 × 76,787.06
  4. Step 4: Simplify right side
    140,449.25x = 14,882,927,085.97
  5. Step 5: Solve for x
    x = 14,882,927,085.97/140,449.25
  6. Step 6: Final answer
    x = 105,966.58

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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.