Home / 137,975.97-190,408.55-83,527.41

Finding the Fourth Proportional to 137,975.97, 190,408.55 and 83,527.41

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Solution

The fourth proportional to 137,975.97, 190,408.55 and 83,527.41 is: 115,268.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,975.97 : 190,408.55 = 83,527.41 : x
  2. Step 2: Convert to fraction form
    137,975.97/190,408.55 = 83,527.41/x
  3. Step 3: Cross multiply
    137,975.97x = 190,408.55 × 83,527.41
  4. Step 4: Simplify right side
    137,975.97x = 15,904,333,156.96
  5. Step 5: Solve for x
    x = 15,904,333,156.96/137,975.97
  6. Step 6: Final answer
    x = 115,268.87

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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.