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Finding the Fourth Proportional to 141,604.84, 195,413.20 and 77,941.28

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Solution

The fourth proportional to 141,604.84, 195,413.20 and 77,941.28 is: 107,558.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,604.84 : 195,413.20 = 77,941.28 : x
  2. Step 2: Convert to fraction form
    141,604.84/195,413.20 = 77,941.28/x
  3. Step 3: Cross multiply
    141,604.84x = 195,413.20 × 77,941.28
  4. Step 4: Simplify right side
    141,604.84x = 15,230,754,936.90
  5. Step 5: Solve for x
    x = 15,230,754,936.90/141,604.84
  6. Step 6: Final answer
    x = 107,558.15

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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.