Home / 185,863.05-278,637.84-80,602.74

Finding the Fourth Proportional to 185,863.05, 278,637.84 and 80,602.74

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Solution

The fourth proportional to 185,863.05, 278,637.84 and 80,602.74 is: 120,836.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,863.05 : 278,637.84 = 80,602.74 : x
  2. Step 2: Convert to fraction form
    185,863.05/278,637.84 = 80,602.74/x
  3. Step 3: Cross multiply
    185,863.05x = 278,637.84 × 80,602.74
  4. Step 4: Simplify right side
    185,863.05x = 22,458,973,371.68
  5. Step 5: Solve for x
    x = 22,458,973,371.68/185,863.05
  6. Step 6: Final answer
    x = 120,836.14

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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.