Home / 91,623.62-137,277.64-71,625.33

Finding the Fourth Proportional to 91,623.62, 137,277.64 and 71,625.33

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Solution

The fourth proportional to 91,623.62, 137,277.64 and 71,625.33 is: 107,314.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,623.62 : 137,277.64 = 71,625.33 : x
  2. Step 2: Convert to fraction form
    91,623.62/137,277.64 = 71,625.33/x
  3. Step 3: Cross multiply
    91,623.62x = 137,277.64 × 71,625.33
  4. Step 4: Simplify right side
    91,623.62x = 9,832,556,266.62
  5. Step 5: Solve for x
    x = 9,832,556,266.62/91,623.62
  6. Step 6: Final answer
    x = 107,314.65

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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.