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Finding the Fourth Proportional to 141,144.91, 211,717.66 and 99,212.63

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Solution

The fourth proportional to 141,144.91, 211,717.66 and 99,212.63 is: 148,819.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,144.91 : 211,717.66 = 99,212.63 : x
  2. Step 2: Convert to fraction form
    141,144.91/211,717.66 = 99,212.63/x
  3. Step 3: Cross multiply
    141,144.91x = 211,717.66 × 99,212.63
  4. Step 4: Simplify right side
    141,144.91x = 21,005,064,559.43
  5. Step 5: Solve for x
    x = 21,005,064,559.43/141,144.91
  6. Step 6: Final answer
    x = 148,819.15

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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.