Home / 185,919.12-278,875.44-61,261.20

Finding the Fourth Proportional to 185,919.12, 278,875.44 and 61,261.20

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Solution

The fourth proportional to 185,919.12, 278,875.44 and 61,261.20 is: 91,890.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,919.12 : 278,875.44 = 61,261.20 : x
  2. Step 2: Convert to fraction form
    185,919.12/278,875.44 = 61,261.20/x
  3. Step 3: Cross multiply
    185,919.12x = 278,875.44 × 61,261.20
  4. Step 4: Simplify right side
    185,919.12x = 17,084,244,104.93
  5. Step 5: Solve for x
    x = 17,084,244,104.93/185,919.12
  6. Step 6: Final answer
    x = 91,890.73

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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.