Home / 220,667.15-304,511.70-125,171.80

Finding the Fourth Proportional to 220,667.15, 304,511.70 and 125,171.80

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Solution

The fourth proportional to 220,667.15, 304,511.70 and 125,171.80 is: 172,731.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,667.15 : 304,511.70 = 125,171.80 : x
  2. Step 2: Convert to fraction form
    220,667.15/304,511.70 = 125,171.80/x
  3. Step 3: Cross multiply
    220,667.15x = 304,511.70 × 125,171.80
  4. Step 4: Simplify right side
    220,667.15x = 38,116,277,318.18
  5. Step 5: Solve for x
    x = 38,116,277,318.18/220,667.15
  6. Step 6: Final answer
    x = 172,731.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.