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Finding the Fourth Proportional to 164,663.28, 227,235.22 and 89,211.78

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Solution

The fourth proportional to 164,663.28, 227,235.22 and 89,211.78 is: 123,112.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,663.28 : 227,235.22 = 89,211.78 : x
  2. Step 2: Convert to fraction form
    164,663.28/227,235.22 = 89,211.78/x
  3. Step 3: Cross multiply
    164,663.28x = 227,235.22 × 89,211.78
  4. Step 4: Simplify right side
    164,663.28x = 20,272,058,454.89
  5. Step 5: Solve for x
    x = 20,272,058,454.89/164,663.28
  6. Step 6: Final answer
    x = 123,112.20

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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.