Home / 141,143.40-211,715.10-131,812.20

Finding the Fourth Proportional to 141,143.40, 211,715.10 and 131,812.20

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Solution

The fourth proportional to 141,143.40, 211,715.10 and 131,812.20 is: 197,718.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,143.40 : 211,715.10 = 131,812.20 : x
  2. Step 2: Convert to fraction form
    141,143.40/211,715.10 = 131,812.20/x
  3. Step 3: Cross multiply
    141,143.40x = 211,715.10 × 131,812.20
  4. Step 4: Simplify right side
    141,143.40x = 27,906,633,104.22
  5. Step 5: Solve for x
    x = 27,906,633,104.22/141,143.40
  6. Step 6: Final answer
    x = 197,718.30

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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.