Home / 187,527.72-281,215.84-69,172.80

Finding the Fourth Proportional to 187,527.72, 281,215.84 and 69,172.80

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Solution

The fourth proportional to 187,527.72, 281,215.84 and 69,172.80 is: 103,731.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,527.72 : 281,215.84 = 69,172.80 : x
  2. Step 2: Convert to fraction form
    187,527.72/281,215.84 = 69,172.80/x
  3. Step 3: Cross multiply
    187,527.72x = 281,215.84 × 69,172.80
  4. Step 4: Simplify right side
    187,527.72x = 19,452,487,057.15
  5. Step 5: Solve for x
    x = 19,452,487,057.15/187,527.72
  6. Step 6: Final answer
    x = 103,731.26

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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.