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Finding the Fourth Proportional to 144,296.98, 199,126.02 and 80,635.30

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Solution

The fourth proportional to 144,296.98, 199,126.02 and 80,635.30 is: 111,274.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,296.98 : 199,126.02 = 80,635.30 : x
  2. Step 2: Convert to fraction form
    144,296.98/199,126.02 = 80,635.30/x
  3. Step 3: Cross multiply
    144,296.98x = 199,126.02 × 80,635.30
  4. Step 4: Simplify right side
    144,296.98x = 16,056,586,360.51
  5. Step 5: Solve for x
    x = 16,056,586,360.51/144,296.98
  6. Step 6: Final answer
    x = 111,274.58

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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.