Home / 135,681.67-187,231.38-75,246.64

Finding the Fourth Proportional to 135,681.67, 187,231.38 and 75,246.64

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Solution

The fourth proportional to 135,681.67, 187,231.38 and 75,246.64 is: 103,835.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,681.67 : 187,231.38 = 75,246.64 : x
  2. Step 2: Convert to fraction form
    135,681.67/187,231.38 = 75,246.64/x
  3. Step 3: Cross multiply
    135,681.67x = 187,231.38 × 75,246.64
  4. Step 4: Simplify right side
    135,681.67x = 14,088,532,247.56
  5. Step 5: Solve for x
    x = 14,088,532,247.56/135,681.67
  6. Step 6: Final answer
    x = 103,835.19

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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.