Home / 187,016.40-280,424.88-81,712.08

Finding the Fourth Proportional to 187,016.40, 280,424.88 and 81,712.08

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Solution

The fourth proportional to 187,016.40, 280,424.88 and 81,712.08 is: 122,524.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,016.40 : 280,424.88 = 81,712.08 : x
  2. Step 2: Convert to fraction form
    187,016.40/280,424.88 = 81,712.08/x
  3. Step 3: Cross multiply
    187,016.40x = 280,424.88 × 81,712.08
  4. Step 4: Simplify right side
    187,016.40x = 22,914,100,228.55
  5. Step 5: Solve for x
    x = 22,914,100,228.55/187,016.40
  6. Step 6: Final answer
    x = 122,524.55

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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.