Home / 105,633.91-158,344.24-66,218.70

Finding the Fourth Proportional to 105,633.91, 158,344.24 and 66,218.70

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Solution

The fourth proportional to 105,633.91, 158,344.24 and 66,218.70 is: 99,261.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,633.91 : 158,344.24 = 66,218.70 : x
  2. Step 2: Convert to fraction form
    105,633.91/158,344.24 = 66,218.70/x
  3. Step 3: Cross multiply
    105,633.91x = 158,344.24 × 66,218.70
  4. Step 4: Simplify right side
    105,633.91x = 10,485,349,163.88
  5. Step 5: Solve for x
    x = 10,485,349,163.88/105,633.91
  6. Step 6: Final answer
    x = 99,261.21

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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.