Home / 141,895.13-195,815.34-78,237.09

Finding the Fourth Proportional to 141,895.13, 195,815.34 and 78,237.09

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Solution

The fourth proportional to 141,895.13, 195,815.34 and 78,237.09 is: 107,967.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,895.13 : 195,815.34 = 78,237.09 : x
  2. Step 2: Convert to fraction form
    141,895.13/195,815.34 = 78,237.09/x
  3. Step 3: Cross multiply
    141,895.13x = 195,815.34 × 78,237.09
  4. Step 4: Simplify right side
    141,895.13x = 15,320,022,378.96
  5. Step 5: Solve for x
    x = 15,320,022,378.96/141,895.13
  6. Step 6: Final answer
    x = 107,967.22

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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.