Home / 141,825.30-195,723-78,167.19

Finding the Fourth Proportional to 141,825.30, 195,723 and 78,167.19

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Solution

The fourth proportional to 141,825.30, 195,723 and 78,167.19 is: 107,872.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,825.30 : 195,723 = 78,167.19 : x
  2. Step 2: Convert to fraction form
    141,825.30/195,723 = 78,167.19/x
  3. Step 3: Cross multiply
    141,825.30x = 195,723 × 78,167.19
  4. Step 4: Simplify right side
    141,825.30x = 15,299,116,928.37
  5. Step 5: Solve for x
    x = 15,299,116,928.37/141,825.30
  6. Step 6: Final answer
    x = 107,872.97

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1.5x scale

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.