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Finding the Fourth Proportional to 141,365.84, 195,087.36 and 77,703.44

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Solution

The fourth proportional to 141,365.84, 195,087.36 and 77,703.44 is: 107,232.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,365.84 : 195,087.36 = 77,703.44 : x
  2. Step 2: Convert to fraction form
    141,365.84/195,087.36 = 77,703.44/x
  3. Step 3: Cross multiply
    141,365.84x = 195,087.36 × 77,703.44
  4. Step 4: Simplify right side
    141,365.84x = 15,158,958,972.52
  5. Step 5: Solve for x
    x = 15,158,958,972.52/141,365.84
  6. Step 6: Final answer
    x = 107,232.12

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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.