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Finding the Fourth Proportional to 144,287.50, 199,116.14 and 80,625.30

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Solution

The fourth proportional to 144,287.50, 199,116.14 and 80,625.30 is: 111,262.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,287.50 : 199,116.14 = 80,625.30 : x
  2. Step 2: Convert to fraction form
    144,287.50/199,116.14 = 80,625.30/x
  3. Step 3: Cross multiply
    144,287.50x = 199,116.14 × 80,625.30
  4. Step 4: Simplify right side
    144,287.50x = 16,053,798,522.34
  5. Step 5: Solve for x
    x = 16,053,798,522.34/144,287.50
  6. Step 6: Final answer
    x = 111,262.57

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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.