Home / 105,633.88-158,344.14-66,218.62

Finding the Fourth Proportional to 105,633.88, 158,344.14 and 66,218.62

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Solution

The fourth proportional to 105,633.88, 158,344.14 and 66,218.62 is: 99,261.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,633.88 : 158,344.14 = 66,218.62 : x
  2. Step 2: Convert to fraction form
    105,633.88/158,344.14 = 66,218.62/x
  3. Step 3: Cross multiply
    105,633.88x = 158,344.14 × 66,218.62
  4. Step 4: Simplify right side
    105,633.88x = 10,485,330,435.89
  5. Step 5: Solve for x
    x = 10,485,330,435.89/105,633.88
  6. Step 6: Final answer
    x = 99,261.06

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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.