Home / 135,633.81-187,194.02-75,217.89

Finding the Fourth Proportional to 135,633.81, 187,194.02 and 75,217.89

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Solution

The fourth proportional to 135,633.81, 187,194.02 and 75,217.89 is: 103,811.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,633.81 : 187,194.02 = 75,217.89 : x
  2. Step 2: Convert to fraction form
    135,633.81/187,194.02 = 75,217.89/x
  3. Step 3: Cross multiply
    135,633.81x = 187,194.02 × 75,217.89
  4. Step 4: Simplify right side
    135,633.81x = 14,080,339,205.02
  5. Step 5: Solve for x
    x = 14,080,339,205.02/135,633.81
  6. Step 6: Final answer
    x = 103,811.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.