Home / 140,382.05-193,727.33-76,719.84

Finding the Fourth Proportional to 140,382.05, 193,727.33 and 76,719.84

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Solution

The fourth proportional to 140,382.05, 193,727.33 and 76,719.84 is: 105,873.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,382.05 : 193,727.33 = 76,719.84 : x
  2. Step 2: Convert to fraction form
    140,382.05/193,727.33 = 76,719.84/x
  3. Step 3: Cross multiply
    140,382.05x = 193,727.33 × 76,719.84
  4. Step 4: Simplify right side
    140,382.05x = 14,862,729,377.63
  5. Step 5: Solve for x
    x = 14,862,729,377.63/140,382.05
  6. Step 6: Final answer
    x = 105,873.44

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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.