Home / 187,343.60-281,015.40-54,228.20

Finding the Fourth Proportional to 187,343.60, 281,015.40 and 54,228.20

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Solution

The fourth proportional to 187,343.60, 281,015.40 and 54,228.20 is: 81,342.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,343.60 : 281,015.40 = 54,228.20 : x
  2. Step 2: Convert to fraction form
    187,343.60/281,015.40 = 54,228.20/x
  3. Step 3: Cross multiply
    187,343.60x = 281,015.40 × 54,228.20
  4. Step 4: Simplify right side
    187,343.60x = 15,238,959,314.28
  5. Step 5: Solve for x
    x = 15,238,959,314.28/187,343.60
  6. Step 6: Final answer
    x = 81,342.30

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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.