Home / 187,871.36-281,544-135,032.96

Finding the Fourth Proportional to 187,871.36, 281,544 and 135,032.96

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Solution

The fourth proportional to 187,871.36, 281,544 and 135,032.96 is: 202,360.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,871.36 : 281,544 = 135,032.96 : x
  2. Step 2: Convert to fraction form
    187,871.36/281,544 = 135,032.96/x
  3. Step 3: Cross multiply
    187,871.36x = 281,544 × 135,032.96
  4. Step 4: Simplify right side
    187,871.36x = 38,017,719,690.24
  5. Step 5: Solve for x
    x = 38,017,719,690.24/187,871.36
  6. Step 6: Final answer
    x = 202,360.38

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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.