Home / 161,291.70-222,569.90-89,667.36

Finding the Fourth Proportional to 161,291.70, 222,569.90 and 89,667.36

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Solution

The fourth proportional to 161,291.70, 222,569.90 and 89,667.36 is: 123,733.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,291.70 : 222,569.90 = 89,667.36 : x
  2. Step 2: Convert to fraction form
    161,291.70/222,569.90 = 89,667.36/x
  3. Step 3: Cross multiply
    161,291.70x = 222,569.90 × 89,667.36
  4. Step 4: Simplify right side
    161,291.70x = 19,957,255,348.46
  5. Step 5: Solve for x
    x = 19,957,255,348.46/161,291.70
  6. Step 6: Final answer
    x = 123,733.93

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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.