Home / 91,467.03-137,022.99-67,407.66

Finding the Fourth Proportional to 91,467.03, 137,022.99 and 67,407.66

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Solution

The fourth proportional to 91,467.03, 137,022.99 and 67,407.66 is: 100,980.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,467.03 : 137,022.99 = 67,407.66 : x
  2. Step 2: Convert to fraction form
    91,467.03/137,022.99 = 67,407.66/x
  3. Step 3: Cross multiply
    91,467.03x = 137,022.99 × 67,407.66
  4. Step 4: Simplify right side
    91,467.03x = 9,236,399,122.10
  5. Step 5: Solve for x
    x = 9,236,399,122.10/91,467.03
  6. Step 6: Final answer
    x = 100,980.64

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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.