Home / 91,243.29-136,674.08-73,377.21

Finding the Fourth Proportional to 91,243.29, 136,674.08 and 73,377.21

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Solution

The fourth proportional to 91,243.29, 136,674.08 and 73,377.21 is: 109,912.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,243.29 : 136,674.08 = 73,377.21 : x
  2. Step 2: Convert to fraction form
    91,243.29/136,674.08 = 73,377.21/x
  3. Step 3: Cross multiply
    91,243.29x = 136,674.08 × 73,377.21
  4. Step 4: Simplify right side
    91,243.29x = 10,028,762,669.72
  5. Step 5: Solve for x
    x = 10,028,762,669.72/91,243.29
  6. Step 6: Final answer
    x = 109,912.33

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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.