Home / 141,881.19-195,797.55-78,221.26

Finding the Fourth Proportional to 141,881.19, 195,797.55 and 78,221.26

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Solution

The fourth proportional to 141,881.19, 195,797.55 and 78,221.26 is: 107,946.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,881.19 : 195,797.55 = 78,221.26 : x
  2. Step 2: Convert to fraction form
    141,881.19/195,797.55 = 78,221.26/x
  3. Step 3: Cross multiply
    141,881.19x = 195,797.55 × 78,221.26
  4. Step 4: Simplify right side
    141,881.19x = 15,315,531,065.91
  5. Step 5: Solve for x
    x = 15,315,531,065.91/141,881.19
  6. Step 6: Final answer
    x = 107,946.17

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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.