Home / 141,724.53-195,580.31-78,062.49

Finding the Fourth Proportional to 141,724.53, 195,580.31 and 78,062.49

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Solution

The fourth proportional to 141,724.53, 195,580.31 and 78,062.49 is: 107,726.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,724.53 : 195,580.31 = 78,062.49 : x
  2. Step 2: Convert to fraction form
    141,724.53/195,580.31 = 78,062.49/x
  3. Step 3: Cross multiply
    141,724.53x = 195,580.31 × 78,062.49
  4. Step 4: Simplify right side
    141,724.53x = 15,267,485,603.26
  5. Step 5: Solve for x
    x = 15,267,485,603.26/141,724.53
  6. Step 6: Final answer
    x = 107,726.49

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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.