Home / 141,398.75-195,131.54-76,868.12

Finding the Fourth Proportional to 141,398.75, 195,131.54 and 76,868.12

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Solution

The fourth proportional to 141,398.75, 195,131.54 and 76,868.12 is: 106,078.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,398.75 : 195,131.54 = 76,868.12 : x
  2. Step 2: Convert to fraction form
    141,398.75/195,131.54 = 76,868.12/x
  3. Step 3: Cross multiply
    141,398.75x = 195,131.54 × 76,868.12
  4. Step 4: Simplify right side
    141,398.75x = 14,999,393,272.51
  5. Step 5: Solve for x
    x = 14,999,393,272.51/141,398.75
  6. Step 6: Final answer
    x = 106,078.69

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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.