Home / 91,370.03-137,174.40-73,367.87

Finding the Fourth Proportional to 91,370.03, 137,174.40 and 73,367.87

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Solution

The fourth proportional to 91,370.03, 137,174.40 and 73,367.87 is: 110,147.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,370.03 : 137,174.40 = 73,367.87 : x
  2. Step 2: Convert to fraction form
    91,370.03/137,174.40 = 73,367.87/x
  3. Step 3: Cross multiply
    91,370.03x = 137,174.40 × 73,367.87
  4. Step 4: Simplify right side
    91,370.03x = 10,064,192,860.66
  5. Step 5: Solve for x
    x = 10,064,192,860.66/91,370.03
  6. Step 6: Final answer
    x = 110,147.64

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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.