Home / 219,947.51-329,927.42-77,772.69

Finding the Fourth Proportional to 219,947.51, 329,927.42 and 77,772.69

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Solution

The fourth proportional to 219,947.51, 329,927.42 and 77,772.69 is: 116,661.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,947.51 : 329,927.42 = 77,772.69 : x
  2. Step 2: Convert to fraction form
    219,947.51/329,927.42 = 77,772.69/x
  3. Step 3: Cross multiply
    219,947.51x = 329,927.42 × 77,772.69
  4. Step 4: Simplify right side
    219,947.51x = 25,659,342,958.16
  5. Step 5: Solve for x
    x = 25,659,342,958.16/219,947.51
  6. Step 6: Final answer
    x = 116,661.21

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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.