Home / 204,005.60-306,073.20-91,642.40

Finding the Fourth Proportional to 204,005.60, 306,073.20 and 91,642.40

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Solution

The fourth proportional to 204,005.60, 306,073.20 and 91,642.40 is: 137,492.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,005.60 : 306,073.20 = 91,642.40 : x
  2. Step 2: Convert to fraction form
    204,005.60/306,073.20 = 91,642.40/x
  3. Step 3: Cross multiply
    204,005.60x = 306,073.20 × 91,642.40
  4. Step 4: Simplify right side
    204,005.60x = 28,049,282,623.68
  5. Step 5: Solve for x
    x = 28,049,282,623.68/204,005.60
  6. Step 6: Final answer
    x = 137,492.71

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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.