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Finding the Fourth Proportional to 144,799.35, 199,704.62 and 101,920.79

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Solution

The fourth proportional to 144,799.35, 199,704.62 and 101,920.79 is: 140,567.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,799.35 : 199,704.62 = 101,920.79 : x
  2. Step 2: Convert to fraction form
    144,799.35/199,704.62 = 101,920.79/x
  3. Step 3: Cross multiply
    144,799.35x = 199,704.62 × 101,920.79
  4. Step 4: Simplify right side
    144,799.35x = 20,354,051,882.99
  5. Step 5: Solve for x
    x = 20,354,051,882.99/144,799.35
  6. Step 6: Final answer
    x = 140,567.29

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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.