Home / 187,265.35-280,898.03-81,972.55

Finding the Fourth Proportional to 187,265.35, 280,898.03 and 81,972.55

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Solution

The fourth proportional to 187,265.35, 280,898.03 and 81,972.55 is: 122,958.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,265.35 : 280,898.03 = 81,972.55 : x
  2. Step 2: Convert to fraction form
    187,265.35/280,898.03 = 81,972.55/x
  3. Step 3: Cross multiply
    187,265.35x = 280,898.03 × 81,972.55
  4. Step 4: Simplify right side
    187,265.35x = 23,025,927,399.21
  5. Step 5: Solve for x
    x = 23,025,927,399.21/187,265.35
  6. Step 6: Final answer
    x = 122,958.83

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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.