Home / 141,065.45-194,670.30-80,637.39

Finding the Fourth Proportional to 141,065.45, 194,670.30 and 80,637.39

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Solution

The fourth proportional to 141,065.45, 194,670.30 and 80,637.39 is: 111,279.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,065.45 : 194,670.30 = 80,637.39 : x
  2. Step 2: Convert to fraction form
    141,065.45/194,670.30 = 80,637.39/x
  3. Step 3: Cross multiply
    141,065.45x = 194,670.30 × 80,637.39
  4. Step 4: Simplify right side
    141,065.45x = 15,697,704,902.52
  5. Step 5: Solve for x
    x = 15,697,704,902.52/141,065.45
  6. Step 6: Final answer
    x = 111,279.59

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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.