Home / 141,378.82-195,102.98-77,717.01

Finding the Fourth Proportional to 141,378.82, 195,102.98 and 77,717.01

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Solution

The fourth proportional to 141,378.82, 195,102.98 and 77,717.01 is: 107,249.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,378.82 : 195,102.98 = 77,717.01 : x
  2. Step 2: Convert to fraction form
    141,378.82/195,102.98 = 77,717.01/x
  3. Step 3: Cross multiply
    141,378.82x = 195,102.98 × 77,717.01
  4. Step 4: Simplify right side
    141,378.82x = 15,162,819,272.17
  5. Step 5: Solve for x
    x = 15,162,819,272.17/141,378.82
  6. Step 6: Final answer
    x = 107,249.58

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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.