Home / 105,651.04-158,282.16-66,200.80

Finding the Fourth Proportional to 105,651.04, 158,282.16 and 66,200.80

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Solution

The fourth proportional to 105,651.04, 158,282.16 and 66,200.80 is: 99,179.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,651.04 : 158,282.16 = 66,200.80 : x
  2. Step 2: Convert to fraction form
    105,651.04/158,282.16 = 66,200.80/x
  3. Step 3: Cross multiply
    105,651.04x = 158,282.16 × 66,200.80
  4. Step 4: Simplify right side
    105,651.04x = 10,478,405,617.73
  5. Step 5: Solve for x
    x = 10,478,405,617.73/105,651.04
  6. Step 6: Final answer
    x = 99,179.39

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1.5x scale

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.