Home / 105,633.13-158,343.02-66,217.87

Finding the Fourth Proportional to 105,633.13, 158,343.02 and 66,217.87

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Solution

The fourth proportional to 105,633.13, 158,343.02 and 66,217.87 is: 99,259.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,633.13 : 158,343.02 = 66,217.87 : x
  2. Step 2: Convert to fraction form
    105,633.13/158,343.02 = 66,217.87/x
  3. Step 3: Cross multiply
    105,633.13x = 158,343.02 × 66,217.87
  4. Step 4: Simplify right side
    105,633.13x = 10,485,137,182.68
  5. Step 5: Solve for x
    x = 10,485,137,182.68/105,633.13
  6. Step 6: Final answer
    x = 99,259.93

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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.