Home / 211,215.12-316,827.54-70,974.96

Finding the Fourth Proportional to 211,215.12, 316,827.54 and 70,974.96

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Solution

The fourth proportional to 211,215.12, 316,827.54 and 70,974.96 is: 106,464.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,215.12 : 316,827.54 = 70,974.96 : x
  2. Step 2: Convert to fraction form
    211,215.12/316,827.54 = 70,974.96/x
  3. Step 3: Cross multiply
    211,215.12x = 316,827.54 × 70,974.96
  4. Step 4: Simplify right side
    211,215.12x = 22,486,821,978.40
  5. Step 5: Solve for x
    x = 22,486,821,978.40/211,215.12
  6. Step 6: Final answer
    x = 106,464.07

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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.