Home / 141,723.95-195,579.03-78,061.75

Finding the Fourth Proportional to 141,723.95, 195,579.03 and 78,061.75

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Solution

The fourth proportional to 141,723.95, 195,579.03 and 78,061.75 is: 107,725.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,723.95 : 195,579.03 = 78,061.75 : x
  2. Step 2: Convert to fraction form
    141,723.95/195,579.03 = 78,061.75/x
  3. Step 3: Cross multiply
    141,723.95x = 195,579.03 × 78,061.75
  4. Step 4: Simplify right side
    141,723.95x = 15,267,240,367.21
  5. Step 5: Solve for x
    x = 15,267,240,367.21/141,723.95
  6. Step 6: Final answer
    x = 107,725.20

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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.