Home / 117,789.84-162,545.76-64,072.80

Finding the Fourth Proportional to 117,789.84, 162,545.76 and 64,072.80

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Solution

The fourth proportional to 117,789.84, 162,545.76 and 64,072.80 is: 88,418.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,789.84 : 162,545.76 = 64,072.80 : x
  2. Step 2: Convert to fraction form
    117,789.84/162,545.76 = 64,072.80/x
  3. Step 3: Cross multiply
    117,789.84x = 162,545.76 × 64,072.80
  4. Step 4: Simplify right side
    117,789.84x = 10,414,761,971.33
  5. Step 5: Solve for x
    x = 10,414,761,971.33/117,789.84
  6. Step 6: Final answer
    x = 88,418.17

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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.