Home / 187,398.44-281,135.28-69,070.40

Finding the Fourth Proportional to 187,398.44, 281,135.28 and 69,070.40

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Solution

The fourth proportional to 187,398.44, 281,135.28 and 69,070.40 is: 103,619.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,398.44 : 281,135.28 = 69,070.40 : x
  2. Step 2: Convert to fraction form
    187,398.44/281,135.28 = 69,070.40/x
  3. Step 3: Cross multiply
    187,398.44x = 281,135.28 × 69,070.40
  4. Step 4: Simplify right side
    187,398.44x = 19,418,126,243.71
  5. Step 5: Solve for x
    x = 19,418,126,243.71/187,398.44
  6. Step 6: Final answer
    x = 103,619.47

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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.