Home / 137,863.28-190,252.09-77,433.94

Finding the Fourth Proportional to 137,863.28, 190,252.09 and 77,433.94

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Solution

The fourth proportional to 137,863.28, 190,252.09 and 77,433.94 is: 106,859.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,863.28 : 190,252.09 = 77,433.94 : x
  2. Step 2: Convert to fraction form
    137,863.28/190,252.09 = 77,433.94/x
  3. Step 3: Cross multiply
    137,863.28x = 190,252.09 × 77,433.94
  4. Step 4: Simplify right side
    137,863.28x = 14,731,969,256.54
  5. Step 5: Solve for x
    x = 14,731,969,256.54/137,863.28
  6. Step 6: Final answer
    x = 106,859.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.