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Finding the Fourth Proportional to 144,060.99, 198,824.22 and 80,402.88

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Solution

The fourth proportional to 144,060.99, 198,824.22 and 80,402.88 is: 110,967.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,060.99 : 198,824.22 = 80,402.88 : x
  2. Step 2: Convert to fraction form
    144,060.99/198,824.22 = 80,402.88/x
  3. Step 3: Cross multiply
    144,060.99x = 198,824.22 × 80,402.88
  4. Step 4: Simplify right side
    144,060.99x = 15,986,039,901.75
  5. Step 5: Solve for x
    x = 15,986,039,901.75/144,060.99
  6. Step 6: Final answer
    x = 110,967.17

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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.