Home / 217,867.60-326,736.60-84,671.20

Finding the Fourth Proportional to 217,867.60, 326,736.60 and 84,671.20

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Solution

The fourth proportional to 217,867.60, 326,736.60 and 84,671.20 is: 126,981.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,867.60 : 326,736.60 = 84,671.20 : x
  2. Step 2: Convert to fraction form
    217,867.60/326,736.60 = 84,671.20/x
  3. Step 3: Cross multiply
    217,867.60x = 326,736.60 × 84,671.20
  4. Step 4: Simplify right side
    217,867.60x = 27,665,180,005.92
  5. Step 5: Solve for x
    x = 27,665,180,005.92/217,867.60
  6. Step 6: Final answer
    x = 126,981.62

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1.5x scale

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.