Home / 187,400.44-281,138.28-69,072.40

Finding the Fourth Proportional to 187,400.44, 281,138.28 and 69,072.40

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Solution

The fourth proportional to 187,400.44, 281,138.28 and 69,072.40 is: 103,622.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,400.44 : 281,138.28 = 69,072.40 : x
  2. Step 2: Convert to fraction form
    187,400.44/281,138.28 = 69,072.40/x
  3. Step 3: Cross multiply
    187,400.44x = 281,138.28 × 69,072.40
  4. Step 4: Simplify right side
    187,400.44x = 19,418,895,731.47
  5. Step 5: Solve for x
    x = 19,418,895,731.47/187,400.44
  6. Step 6: Final answer
    x = 103,622.47

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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.