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Finding the Fourth Proportional to 161,648.86, 223,082.32 and 90,028.88

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Solution

The fourth proportional to 161,648.86, 223,082.32 and 90,028.88 is: 124,243.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,648.86 : 223,082.32 = 90,028.88 : x
  2. Step 2: Convert to fraction form
    161,648.86/223,082.32 = 90,028.88/x
  3. Step 3: Cross multiply
    161,648.86x = 223,082.32 × 90,028.88
  4. Step 4: Simplify right side
    161,648.86x = 20,083,851,417.40
  5. Step 5: Solve for x
    x = 20,083,851,417.40/161,648.86
  6. Step 6: Final answer
    x = 124,243.69

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.