Home / 187,813.62-281,344.86-112,893.12

Finding the Fourth Proportional to 187,813.62, 281,344.86 and 112,893.12

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Solution

The fourth proportional to 187,813.62, 281,344.86 and 112,893.12 is: 169,113.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,813.62 : 281,344.86 = 112,893.12 : x
  2. Step 2: Convert to fraction form
    187,813.62/281,344.86 = 112,893.12/x
  3. Step 3: Cross multiply
    187,813.62x = 281,344.86 × 112,893.12
  4. Step 4: Simplify right side
    187,813.62x = 31,761,899,041.36
  5. Step 5: Solve for x
    x = 31,761,899,041.36/187,813.62
  6. Step 6: Final answer
    x = 169,113.93

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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.