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Finding the Fourth Proportional to 160,289.88, 221,180.89 and 88,660.16

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Solution

The fourth proportional to 160,289.88, 221,180.89 and 88,660.16 is: 122,340.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,289.88 : 221,180.89 = 88,660.16 : x
  2. Step 2: Convert to fraction form
    160,289.88/221,180.89 = 88,660.16/x
  3. Step 3: Cross multiply
    160,289.88x = 221,180.89 × 88,660.16
  4. Step 4: Simplify right side
    160,289.88x = 19,609,933,096.34
  5. Step 5: Solve for x
    x = 19,609,933,096.34/160,289.88
  6. Step 6: Final answer
    x = 122,340.43

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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.