Home / 204,242.58-306,407.61-85,845.69

Finding the Fourth Proportional to 204,242.58, 306,407.61 and 85,845.69

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Solution

The fourth proportional to 204,242.58, 306,407.61 and 85,845.69 is: 128,786.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,242.58 : 306,407.61 = 85,845.69 : x
  2. Step 2: Convert to fraction form
    204,242.58/306,407.61 = 85,845.69/x
  3. Step 3: Cross multiply
    204,242.58x = 306,407.61 × 85,845.69
  4. Step 4: Simplify right side
    204,242.58x = 26,303,772,701.70
  5. Step 5: Solve for x
    x = 26,303,772,701.70/204,242.58
  6. Step 6: Final answer
    x = 128,786.92

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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.