Home / 140,470.64-193,849.56-76,808.96

Finding the Fourth Proportional to 140,470.64, 193,849.56 and 76,808.96

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Solution

The fourth proportional to 140,470.64, 193,849.56 and 76,808.96 is: 105,996.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,470.64 : 193,849.56 = 76,808.96 : x
  2. Step 2: Convert to fraction form
    140,470.64/193,849.56 = 76,808.96/x
  3. Step 3: Cross multiply
    140,470.64x = 193,849.56 × 76,808.96
  4. Step 4: Simplify right side
    140,470.64x = 14,889,383,100.06
  5. Step 5: Solve for x
    x = 14,889,383,100.06/140,470.64
  6. Step 6: Final answer
    x = 105,996.41

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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.