Home / 141,808.20-195,696.62-78,148.26

Finding the Fourth Proportional to 141,808.20, 195,696.62 and 78,148.26

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Solution

The fourth proportional to 141,808.20, 195,696.62 and 78,148.26 is: 107,845.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,808.20 : 195,696.62 = 78,148.26 : x
  2. Step 2: Convert to fraction form
    141,808.20/195,696.62 = 78,148.26/x
  3. Step 3: Cross multiply
    141,808.20x = 195,696.62 × 78,148.26
  4. Step 4: Simplify right side
    141,808.20x = 15,293,349,950.14
  5. Step 5: Solve for x
    x = 15,293,349,950.14/141,808.20
  6. Step 6: Final answer
    x = 107,845.31

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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.