Home / 187,119.40-280,789.74-68,873.80

Finding the Fourth Proportional to 187,119.40, 280,789.74 and 68,873.80

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Solution

The fourth proportional to 187,119.40, 280,789.74 and 68,873.80 is: 103,351.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,119.40 : 280,789.74 = 68,873.80 : x
  2. Step 2: Convert to fraction form
    187,119.40/280,789.74 = 68,873.80/x
  3. Step 3: Cross multiply
    187,119.40x = 280,789.74 × 68,873.80
  4. Step 4: Simplify right side
    187,119.40x = 19,339,056,394.81
  5. Step 5: Solve for x
    x = 19,339,056,394.81/187,119.40
  6. Step 6: Final answer
    x = 103,351.42

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1.5x scale

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.