Home / 141,409.48-195,144.60-77,747.08

Finding the Fourth Proportional to 141,409.48, 195,144.60 and 77,747.08

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Solution

The fourth proportional to 141,409.48, 195,144.60 and 77,747.08 is: 107,290.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,409.48 : 195,144.60 = 77,747.08 : x
  2. Step 2: Convert to fraction form
    141,409.48/195,144.60 = 77,747.08/x
  3. Step 3: Cross multiply
    141,409.48x = 195,144.60 × 77,747.08
  4. Step 4: Simplify right side
    141,409.48x = 15,171,922,827.77
  5. Step 5: Solve for x
    x = 15,171,922,827.77/141,409.48
  6. Step 6: Final answer
    x = 107,290.71

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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.