Home / 219,747.32-329,633.85-84,812.12

Finding the Fourth Proportional to 219,747.32, 329,633.85 and 84,812.12

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Solution

The fourth proportional to 219,747.32, 329,633.85 and 84,812.12 is: 127,223.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,747.32 : 329,633.85 = 84,812.12 : x
  2. Step 2: Convert to fraction form
    219,747.32/329,633.85 = 84,812.12/x
  3. Step 3: Cross multiply
    219,747.32x = 329,633.85 × 84,812.12
  4. Step 4: Simplify right side
    219,747.32x = 27,956,945,642.26
  5. Step 5: Solve for x
    x = 27,956,945,642.26/219,747.32
  6. Step 6: Final answer
    x = 127,223.15

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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.