Home / 102,960.64-154,436.30-28,080.80

Finding the Fourth Proportional to 102,960.64, 154,436.30 and 28,080.80

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Solution

The fourth proportional to 102,960.64, 154,436.30 and 28,080.80 is: 42,119.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,960.64 : 154,436.30 = 28,080.80 : x
  2. Step 2: Convert to fraction form
    102,960.64/154,436.30 = 28,080.80/x
  3. Step 3: Cross multiply
    102,960.64x = 154,436.30 × 28,080.80
  4. Step 4: Simplify right side
    102,960.64x = 4,336,694,853.04
  5. Step 5: Solve for x
    x = 4,336,694,853.04/102,960.64
  6. Step 6: Final answer
    x = 42,119.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.