Home / 185,833.16-278,783.34-67,670.36

Finding the Fourth Proportional to 185,833.16, 278,783.34 and 67,670.36

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Solution

The fourth proportional to 185,833.16, 278,783.34 and 67,670.36 is: 101,517.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,833.16 : 278,783.34 = 67,670.36 : x
  2. Step 2: Convert to fraction form
    185,833.16/278,783.34 = 67,670.36/x
  3. Step 3: Cross multiply
    185,833.16x = 278,783.34 × 67,670.36
  4. Step 4: Simplify right side
    185,833.16x = 18,865,368,979.80
  5. Step 5: Solve for x
    x = 18,865,368,979.80/185,833.16
  6. Step 6: Final answer
    x = 101,517.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.