Home / 188,117.33-282,221.15-69,789.69

Finding the Fourth Proportional to 188,117.33, 282,221.15 and 69,789.69

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Solution

The fourth proportional to 188,117.33, 282,221.15 and 69,789.69 is: 104,701.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,117.33 : 282,221.15 = 69,789.69 : x
  2. Step 2: Convert to fraction form
    188,117.33/282,221.15 = 69,789.69/x
  3. Step 3: Cross multiply
    188,117.33x = 282,221.15 × 69,789.69
  4. Step 4: Simplify right side
    188,117.33x = 19,696,126,221.00
  5. Step 5: Solve for x
    x = 19,696,126,221.00/188,117.33
  6. Step 6: Final answer
    x = 104,701.29

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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.