Home / 141,881.22-195,803.33-78,218.87

Finding the Fourth Proportional to 141,881.22, 195,803.33 and 78,218.87

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Solution

The fourth proportional to 141,881.22, 195,803.33 and 78,218.87 is: 107,946.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,881.22 : 195,803.33 = 78,218.87 : x
  2. Step 2: Convert to fraction form
    141,881.22/195,803.33 = 78,218.87/x
  3. Step 3: Cross multiply
    141,881.22x = 195,803.33 × 78,218.87
  4. Step 4: Simplify right side
    141,881.22x = 15,315,513,844.73
  5. Step 5: Solve for x
    x = 15,315,513,844.73/141,881.22
  6. Step 6: Final answer
    x = 107,946.03

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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.