Home / 82,136.52-113,245.65-68,544.18

Finding the Fourth Proportional to 82,136.52, 113,245.65 and 68,544.18

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Solution

The fourth proportional to 82,136.52, 113,245.65 and 68,544.18 is: 94,505.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,136.52 : 113,245.65 = 68,544.18 : x
  2. Step 2: Convert to fraction form
    82,136.52/113,245.65 = 68,544.18/x
  3. Step 3: Cross multiply
    82,136.52x = 113,245.65 × 68,544.18
  4. Step 4: Simplify right side
    82,136.52x = 7,762,330,217.82
  5. Step 5: Solve for x
    x = 7,762,330,217.82/82,136.52
  6. Step 6: Final answer
    x = 94,505.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.