Home / 187,707.80-281,603.21-103,424.57

Finding the Fourth Proportional to 187,707.80, 281,603.21 and 103,424.57

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Solution

The fourth proportional to 187,707.80, 281,603.21 and 103,424.57 is: 155,159.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,707.80 : 281,603.21 = 103,424.57 : x
  2. Step 2: Convert to fraction form
    187,707.80/281,603.21 = 103,424.57/x
  3. Step 3: Cross multiply
    187,707.80x = 281,603.21 × 103,424.57
  4. Step 4: Simplify right side
    187,707.80x = 29,124,691,867.44
  5. Step 5: Solve for x
    x = 29,124,691,867.44/187,707.80
  6. Step 6: Final answer
    x = 155,159.74

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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.