Home / 161,279.90-222,579.72-89,666.60

Finding the Fourth Proportional to 161,279.90, 222,579.72 and 89,666.60

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Solution

The fourth proportional to 161,279.90, 222,579.72 and 89,666.60 is: 123,747.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,279.90 : 222,579.72 = 89,666.60 : x
  2. Step 2: Convert to fraction form
    161,279.90/222,579.72 = 89,666.60/x
  3. Step 3: Cross multiply
    161,279.90x = 222,579.72 × 89,666.60
  4. Step 4: Simplify right side
    161,279.90x = 19,957,966,721.35
  5. Step 5: Solve for x
    x = 19,957,966,721.35/161,279.90
  6. Step 6: Final answer
    x = 123,747.39

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1.5x scale

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.