Home / 135,136.08-186,504.12-84,825.36

Finding the Fourth Proportional to 135,136.08, 186,504.12 and 84,825.36

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Solution

The fourth proportional to 135,136.08, 186,504.12 and 84,825.36 is: 117,069.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,136.08 : 186,504.12 = 84,825.36 : x
  2. Step 2: Convert to fraction form
    135,136.08/186,504.12 = 84,825.36/x
  3. Step 3: Cross multiply
    135,136.08x = 186,504.12 × 84,825.36
  4. Step 4: Simplify right side
    135,136.08x = 15,820,279,120.48
  5. Step 5: Solve for x
    x = 15,820,279,120.48/135,136.08
  6. Step 6: Final answer
    x = 117,069.25

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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.