Home / 141,551.44-195,342.35-77,890.61

Finding the Fourth Proportional to 141,551.44, 195,342.35 and 77,890.61

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Solution

The fourth proportional to 141,551.44, 195,342.35 and 77,890.61 is: 107,489.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,551.44 : 195,342.35 = 77,890.61 : x
  2. Step 2: Convert to fraction form
    141,551.44/195,342.35 = 77,890.61/x
  3. Step 3: Cross multiply
    141,551.44x = 195,342.35 × 77,890.61
  4. Step 4: Simplify right side
    141,551.44x = 15,215,334,018.35
  5. Step 5: Solve for x
    x = 15,215,334,018.35/141,551.44
  6. Step 6: Final answer
    x = 107,489.79

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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.