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Finding the Fourth Proportional to 161,168.53, 241,669.36 and 72,345.55

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Solution

The fourth proportional to 161,168.53, 241,669.36 and 72,345.55 is: 108,480.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,168.53 : 241,669.36 = 72,345.55 : x
  2. Step 2: Convert to fraction form
    161,168.53/241,669.36 = 72,345.55/x
  3. Step 3: Cross multiply
    161,168.53x = 241,669.36 × 72,345.55
  4. Step 4: Simplify right side
    161,168.53x = 17,483,701,197.27
  5. Step 5: Solve for x
    x = 17,483,701,197.27/161,168.53
  6. Step 6: Final answer
    x = 108,480.87

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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.