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Finding the Fourth Proportional to 171,652.96, 236,902.08 and 107,989.39

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Solution

The fourth proportional to 171,652.96, 236,902.08 and 107,989.39 is: 149,038.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,652.96 : 236,902.08 = 107,989.39 : x
  2. Step 2: Convert to fraction form
    171,652.96/236,902.08 = 107,989.39/x
  3. Step 3: Cross multiply
    171,652.96x = 236,902.08 × 107,989.39
  4. Step 4: Simplify right side
    171,652.96x = 25,582,911,108.93
  5. Step 5: Solve for x
    x = 25,582,911,108.93/171,652.96
  6. Step 6: Final answer
    x = 149,038.57

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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.