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Finding the Fourth Proportional to 173,418.40, 260,127.60 and 55,101.70

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Solution

The fourth proportional to 173,418.40, 260,127.60 and 55,101.70 is: 82,652.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,418.40 : 260,127.60 = 55,101.70 : x
  2. Step 2: Convert to fraction form
    173,418.40/260,127.60 = 55,101.70/x
  3. Step 3: Cross multiply
    173,418.40x = 260,127.60 × 55,101.70
  4. Step 4: Simplify right side
    173,418.40x = 14,333,472,976.92
  5. Step 5: Solve for x
    x = 14,333,472,976.92/173,418.40
  6. Step 6: Final answer
    x = 82,652.55

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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.