Home / 135,001.08-186,197.94-81,230.04

Finding the Fourth Proportional to 135,001.08, 186,197.94 and 81,230.04

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Solution

The fourth proportional to 135,001.08, 186,197.94 and 81,230.04 is: 112,035.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,001.08 : 186,197.94 = 81,230.04 : x
  2. Step 2: Convert to fraction form
    135,001.08/186,197.94 = 81,230.04/x
  3. Step 3: Cross multiply
    135,001.08x = 186,197.94 × 81,230.04
  4. Step 4: Simplify right side
    135,001.08x = 15,124,866,114.12
  5. Step 5: Solve for x
    x = 15,124,866,114.12/135,001.08
  6. Step 6: Final answer
    x = 112,035.15

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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.