Home / 144,525.20-199,436.64-79,990.88

Finding the Fourth Proportional to 144,525.20, 199,436.64 and 79,990.88

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Solution

The fourth proportional to 144,525.20, 199,436.64 and 79,990.88 is: 110,382.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,525.20 : 199,436.64 = 79,990.88 : x
  2. Step 2: Convert to fraction form
    144,525.20/199,436.64 = 79,990.88/x
  3. Step 3: Cross multiply
    144,525.20x = 199,436.64 × 79,990.88
  4. Step 4: Simplify right side
    144,525.20x = 15,953,112,337.84
  5. Step 5: Solve for x
    x = 15,953,112,337.84/144,525.20
  6. Step 6: Final answer
    x = 110,382.91

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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.