Home / 91,039.73-136,320.32-73,175.58

Finding the Fourth Proportional to 91,039.73, 136,320.32 and 73,175.58

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Solution

The fourth proportional to 91,039.73, 136,320.32 and 73,175.58 is: 109,571.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,039.73 : 136,320.32 = 73,175.58 : x
  2. Step 2: Convert to fraction form
    91,039.73/136,320.32 = 73,175.58/x
  3. Step 3: Cross multiply
    91,039.73x = 136,320.32 × 73,175.58
  4. Step 4: Simplify right side
    91,039.73x = 9,975,318,115.91
  5. Step 5: Solve for x
    x = 9,975,318,115.91/91,039.73
  6. Step 6: Final answer
    x = 109,571.05

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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.