Home / 141,908.16-212,993.28-71,836.80

Finding the Fourth Proportional to 141,908.16, 212,993.28 and 71,836.80

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Solution

The fourth proportional to 141,908.16, 212,993.28 and 71,836.80 is: 107,821.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,908.16 : 212,993.28 = 71,836.80 : x
  2. Step 2: Convert to fraction form
    141,908.16/212,993.28 = 71,836.80/x
  3. Step 3: Cross multiply
    141,908.16x = 212,993.28 × 71,836.80
  4. Step 4: Simplify right side
    141,908.16x = 15,300,755,656.70
  5. Step 5: Solve for x
    x = 15,300,755,656.70/141,908.16
  6. Step 6: Final answer
    x = 107,821.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.