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Finding the Fourth Proportional to 172,583.96, 258,937.88 and 67,478.36

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Solution

The fourth proportional to 172,583.96, 258,937.88 and 67,478.36 is: 101,241.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,583.96 : 258,937.88 = 67,478.36 : x
  2. Step 2: Convert to fraction form
    172,583.96/258,937.88 = 67,478.36/x
  3. Step 3: Cross multiply
    172,583.96x = 258,937.88 × 67,478.36
  4. Step 4: Simplify right side
    172,583.96x = 17,472,703,484.28
  5. Step 5: Solve for x
    x = 17,472,703,484.28/172,583.96
  6. Step 6: Final answer
    x = 101,241.76

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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.