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Finding the Fourth Proportional to 160,481.76, 221,467.16 and 88,861.64

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Solution

The fourth proportional to 160,481.76, 221,467.16 and 88,861.64 is: 122,630.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,481.76 : 221,467.16 = 88,861.64 : x
  2. Step 2: Convert to fraction form
    160,481.76/221,467.16 = 88,861.64/x
  3. Step 3: Cross multiply
    160,481.76x = 221,467.16 × 88,861.64
  4. Step 4: Simplify right side
    160,481.76x = 19,679,935,043.74
  5. Step 5: Solve for x
    x = 19,679,935,043.74/160,481.76
  6. Step 6: Final answer
    x = 122,630.35

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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.