Home / 137,975.85-190,264.91-115,306.38

Finding the Fourth Proportional to 137,975.85, 190,264.91 and 115,306.38

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Solution

The fourth proportional to 137,975.85, 190,264.91 and 115,306.38 is: 159,004.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,975.85 : 190,264.91 = 115,306.38 : x
  2. Step 2: Convert to fraction form
    137,975.85/190,264.91 = 115,306.38/x
  3. Step 3: Cross multiply
    137,975.85x = 190,264.91 × 115,306.38
  4. Step 4: Simplify right side
    137,975.85x = 21,938,757,436.59
  5. Step 5: Solve for x
    x = 21,938,757,436.59/137,975.85
  6. Step 6: Final answer
    x = 159,004.33

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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.