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Finding the Fourth Proportional to 162,288.61, 223,954.16 and 90,669.17

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Solution

The fourth proportional to 162,288.61, 223,954.16 and 90,669.17 is: 125,121.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,288.61 : 223,954.16 = 90,669.17 : x
  2. Step 2: Convert to fraction form
    162,288.61/223,954.16 = 90,669.17/x
  3. Step 3: Cross multiply
    162,288.61x = 223,954.16 × 90,669.17
  4. Step 4: Simplify right side
    162,288.61x = 20,305,737,071.96
  5. Step 5: Solve for x
    x = 20,305,737,071.96/162,288.61
  6. Step 6: Final answer
    x = 125,121.15

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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.