Home / 91,261.87-136,701.85-73,395.96

Finding the Fourth Proportional to 91,261.87, 136,701.85 and 73,395.96

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Solution

The fourth proportional to 91,261.87, 136,701.85 and 73,395.96 is: 109,940.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,261.87 : 136,701.85 = 73,395.96 : x
  2. Step 2: Convert to fraction form
    91,261.87/136,701.85 = 73,395.96/x
  3. Step 3: Cross multiply
    91,261.87x = 136,701.85 × 73,395.96
  4. Step 4: Simplify right side
    91,261.87x = 10,033,363,514.53
  5. Step 5: Solve for x
    x = 10,033,363,514.53/91,261.87
  6. Step 6: Final answer
    x = 109,940.37

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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.