Home / 187,323.30-281,021.40-54,207.90

Finding the Fourth Proportional to 187,323.30, 281,021.40 and 54,207.90

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Solution

The fourth proportional to 187,323.30, 281,021.40 and 54,207.90 is: 81,322.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,323.30 : 281,021.40 = 54,207.90 : x
  2. Step 2: Convert to fraction form
    187,323.30/281,021.40 = 54,207.90/x
  3. Step 3: Cross multiply
    187,323.30x = 281,021.40 × 54,207.90
  4. Step 4: Simplify right side
    187,323.30x = 15,233,579,949.06
  5. Step 5: Solve for x
    x = 15,233,579,949.06/187,323.30
  6. Step 6: Final answer
    x = 81,322.40

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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.