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Finding the Fourth Proportional to 160,620.45, 221,656 and 89,005.11

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Solution

The fourth proportional to 160,620.45, 221,656 and 89,005.11 is: 122,826.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,620.45 : 221,656 = 89,005.11 : x
  2. Step 2: Convert to fraction form
    160,620.45/221,656 = 89,005.11/x
  3. Step 3: Cross multiply
    160,620.45x = 221,656 × 89,005.11
  4. Step 4: Simplify right side
    160,620.45x = 19,728,516,662.16
  5. Step 5: Solve for x
    x = 19,728,516,662.16/160,620.45
  6. Step 6: Final answer
    x = 122,826.93

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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.