Home / 135,746.12-187,325.04-82,021.64

Finding the Fourth Proportional to 135,746.12, 187,325.04 and 82,021.64

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Solution

The fourth proportional to 135,746.12, 187,325.04 and 82,021.64 is: 113,187.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,746.12 : 187,325.04 = 82,021.64 : x
  2. Step 2: Convert to fraction form
    135,746.12/187,325.04 = 82,021.64/x
  3. Step 3: Cross multiply
    135,746.12x = 187,325.04 × 82,021.64
  4. Step 4: Simplify right side
    135,746.12x = 15,364,706,993.87
  5. Step 5: Solve for x
    x = 15,364,706,993.87/135,746.12
  6. Step 6: Final answer
    x = 113,187.08

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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.