Home / 141,942.07-195,881.30-78,282.07

Finding the Fourth Proportional to 141,942.07, 195,881.30 and 78,282.07

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Solution

The fourth proportional to 141,942.07, 195,881.30 and 78,282.07 is: 108,029.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,942.07 : 195,881.30 = 78,282.07 : x
  2. Step 2: Convert to fraction form
    141,942.07/195,881.30 = 78,282.07/x
  3. Step 3: Cross multiply
    141,942.07x = 195,881.30 × 78,282.07
  4. Step 4: Simplify right side
    141,942.07x = 15,333,993,638.29
  5. Step 5: Solve for x
    x = 15,333,993,638.29/141,942.07
  6. Step 6: Final answer
    x = 108,029.94

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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.