Home / 141,388.80-195,118.56-77,732.48

Finding the Fourth Proportional to 141,388.80, 195,118.56 and 77,732.48

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Solution

The fourth proportional to 141,388.80, 195,118.56 and 77,732.48 is: 107,271.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,388.80 : 195,118.56 = 77,732.48 : x
  2. Step 2: Convert to fraction form
    141,388.80/195,118.56 = 77,732.48/x
  3. Step 3: Cross multiply
    141,388.80x = 195,118.56 × 77,732.48
  4. Step 4: Simplify right side
    141,388.80x = 15,167,049,562.83
  5. Step 5: Solve for x
    x = 15,167,049,562.83/141,388.80
  6. Step 6: Final answer
    x = 107,271.93

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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.