Home / 213,877.08-320,864.40-113,984.64

Finding the Fourth Proportional to 213,877.08, 320,864.40 and 113,984.64

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Solution

The fourth proportional to 213,877.08, 320,864.40 and 113,984.64 is: 171,002.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,877.08 : 320,864.40 = 113,984.64 : x
  2. Step 2: Convert to fraction form
    213,877.08/320,864.40 = 113,984.64/x
  3. Step 3: Cross multiply
    213,877.08x = 320,864.40 × 113,984.64
  4. Step 4: Simplify right side
    213,877.08x = 36,573,613,122.82
  5. Step 5: Solve for x
    x = 36,573,613,122.82/213,877.08
  6. Step 6: Final answer
    x = 171,002.96

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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.