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Finding the Fourth Proportional to 161,120, 241,731.36 and 67,600.64

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Solution

The fourth proportional to 161,120, 241,731.36 and 67,600.64 is: 101,422.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,120 : 241,731.36 = 67,600.64 : x
  2. Step 2: Convert to fraction form
    161,120/241,731.36 = 67,600.64/x
  3. Step 3: Cross multiply
    161,120x = 241,731.36 × 67,600.64
  4. Step 4: Simplify right side
    161,120x = 16,341,194,644.07
  5. Step 5: Solve for x
    x = 16,341,194,644.07/161,120
  6. Step 6: Final answer
    x = 101,422.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.