Home / 211,057.20-316,536.12-61,257.96

Finding the Fourth Proportional to 211,057.20, 316,536.12 and 61,257.96

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Solution

The fourth proportional to 211,057.20, 316,536.12 and 61,257.96 is: 91,872.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,057.20 : 316,536.12 = 61,257.96 : x
  2. Step 2: Convert to fraction form
    211,057.20/316,536.12 = 61,257.96/x
  3. Step 3: Cross multiply
    211,057.20x = 316,536.12 × 61,257.96
  4. Step 4: Simplify right side
    211,057.20x = 19,390,356,977.52
  5. Step 5: Solve for x
    x = 19,390,356,977.52/211,057.20
  6. Step 6: Final answer
    x = 91,872.52

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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.