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Finding the Fourth Proportional to 144,348.30, 199,192.60 and 79,813.80

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Solution

The fourth proportional to 144,348.30, 199,192.60 and 79,813.80 is: 110,138.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,348.30 : 199,192.60 = 79,813.80 : x
  2. Step 2: Convert to fraction form
    144,348.30/199,192.60 = 79,813.80/x
  3. Step 3: Cross multiply
    144,348.30x = 199,192.60 × 79,813.80
  4. Step 4: Simplify right side
    144,348.30x = 15,898,318,337.88
  5. Step 5: Solve for x
    x = 15,898,318,337.88/144,348.30
  6. Step 6: Final answer
    x = 110,138.59

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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.