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Finding the Fourth Proportional to 160,699.52, 221,742.03 and 89,079.50

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Solution

The fourth proportional to 160,699.52, 221,742.03 and 89,079.50 is: 122,916.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,699.52 : 221,742.03 = 89,079.50 : x
  2. Step 2: Convert to fraction form
    160,699.52/221,742.03 = 89,079.50/x
  3. Step 3: Cross multiply
    160,699.52x = 221,742.03 × 89,079.50
  4. Step 4: Simplify right side
    160,699.52x = 19,752,669,161.39
  5. Step 5: Solve for x
    x = 19,752,669,161.39/160,699.52
  6. Step 6: Final answer
    x = 122,916.79

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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.