Home / 141,406.09-195,141.12-77,747.98

Finding the Fourth Proportional to 141,406.09, 195,141.12 and 77,747.98

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Solution

The fourth proportional to 141,406.09, 195,141.12 and 77,747.98 is: 107,292.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,406.09 : 195,141.12 = 77,747.98 : x
  2. Step 2: Convert to fraction form
    141,406.09/195,141.12 = 77,747.98/x
  3. Step 3: Cross multiply
    141,406.09x = 195,141.12 × 77,747.98
  4. Step 4: Simplify right side
    141,406.09x = 15,171,827,894.94
  5. Step 5: Solve for x
    x = 15,171,827,894.94/141,406.09
  6. Step 6: Final answer
    x = 107,292.61

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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.