Home / 141,318.81-195,010.79-80,889.93

Finding the Fourth Proportional to 141,318.81, 195,010.79 and 80,889.93

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Solution

The fourth proportional to 141,318.81, 195,010.79 and 80,889.93 is: 111,622.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,318.81 : 195,010.79 = 80,889.93 : x
  2. Step 2: Convert to fraction form
    141,318.81/195,010.79 = 80,889.93/x
  3. Step 3: Cross multiply
    141,318.81x = 195,010.79 × 80,889.93
  4. Step 4: Simplify right side
    141,318.81x = 15,774,408,747.90
  5. Step 5: Solve for x
    x = 15,774,408,747.90/141,318.81
  6. Step 6: Final answer
    x = 111,622.85

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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.