Home / 213,541.25-320,505.06-113,785.70

Finding the Fourth Proportional to 213,541.25, 320,505.06 and 113,785.70

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Solution

The fourth proportional to 213,541.25, 320,505.06 and 113,785.70 is: 170,781.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,541.25 : 320,505.06 = 113,785.70 : x
  2. Step 2: Convert to fraction form
    213,541.25/320,505.06 = 113,785.70/x
  3. Step 3: Cross multiply
    213,541.25x = 320,505.06 × 113,785.70
  4. Step 4: Simplify right side
    213,541.25x = 36,468,892,605.64
  5. Step 5: Solve for x
    x = 36,468,892,605.64/213,541.25
  6. Step 6: Final answer
    x = 170,781.49

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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.