Home / 141,288.08-194,967.72-77,628.56

Finding the Fourth Proportional to 141,288.08, 194,967.72 and 77,628.56

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Solution

The fourth proportional to 141,288.08, 194,967.72 and 77,628.56 is: 107,122.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,288.08 : 194,967.72 = 77,628.56 : x
  2. Step 2: Convert to fraction form
    141,288.08/194,967.72 = 77,628.56/x
  3. Step 3: Cross multiply
    141,288.08x = 194,967.72 × 77,628.56
  4. Step 4: Simplify right side
    141,288.08x = 15,135,063,350.08
  5. Step 5: Solve for x
    x = 15,135,063,350.08/141,288.08
  6. Step 6: Final answer
    x = 107,122.01

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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.