Home / 106,566.80-159,979.80-80,063.60

Finding the Fourth Proportional to 106,566.80, 159,979.80 and 80,063.60

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Solution

The fourth proportional to 106,566.80, 159,979.80 and 80,063.60 is: 120,192.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,566.80 : 159,979.80 = 80,063.60 : x
  2. Step 2: Convert to fraction form
    106,566.80/159,979.80 = 80,063.60/x
  3. Step 3: Cross multiply
    106,566.80x = 159,979.80 × 80,063.60
  4. Step 4: Simplify right side
    106,566.80x = 12,808,558,715.28
  5. Step 5: Solve for x
    x = 12,808,558,715.28/106,566.80
  6. Step 6: Final answer
    x = 120,192.77

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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.