Home / 213,701.24-320,268.72-113,646

Finding the Fourth Proportional to 213,701.24, 320,268.72 and 113,646

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Solution

The fourth proportional to 213,701.24, 320,268.72 and 113,646 is: 170,318.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,701.24 : 320,268.72 = 113,646 : x
  2. Step 2: Convert to fraction form
    213,701.24/320,268.72 = 113,646/x
  3. Step 3: Cross multiply
    213,701.24x = 320,268.72 × 113,646
  4. Step 4: Simplify right side
    213,701.24x = 36,397,258,953.12
  5. Step 5: Solve for x
    x = 36,397,258,953.12/213,701.24
  6. Step 6: Final answer
    x = 170,318.43

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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.