Home / 211,936.72-317,905.20-54,165.32

Finding the Fourth Proportional to 211,936.72, 317,905.20 and 54,165.32

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Solution

The fourth proportional to 211,936.72, 317,905.20 and 54,165.32 is: 81,248.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,936.72 : 317,905.20 = 54,165.32 : x
  2. Step 2: Convert to fraction form
    211,936.72/317,905.20 = 54,165.32/x
  3. Step 3: Cross multiply
    211,936.72x = 317,905.20 × 54,165.32
  4. Step 4: Simplify right side
    211,936.72x = 17,219,436,887.66
  5. Step 5: Solve for x
    x = 17,219,436,887.66/211,936.72
  6. Step 6: Final answer
    x = 81,248.01

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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.