Home / 204,410.45-306,627.98-86,091.01

Finding the Fourth Proportional to 204,410.45, 306,627.98 and 86,091.01

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Solution

The fourth proportional to 204,410.45, 306,627.98 and 86,091.01 is: 129,141.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,410.45 : 306,627.98 = 86,091.01 : x
  2. Step 2: Convert to fraction form
    204,410.45/306,627.98 = 86,091.01/x
  3. Step 3: Cross multiply
    204,410.45x = 306,627.98 × 86,091.01
  4. Step 4: Simplify right side
    204,410.45x = 26,397,911,295.43
  5. Step 5: Solve for x
    x = 26,397,911,295.43/204,410.45
  6. Step 6: Final answer
    x = 129,141.69

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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.