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Finding the Fourth Proportional to 173,518, 239,455.20 and 94,030

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Solution

The fourth proportional to 173,518, 239,455.20 and 94,030 is: 129,761.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,518 : 239,455.20 = 94,030 : x
  2. Step 2: Convert to fraction form
    173,518/239,455.20 = 94,030/x
  3. Step 3: Cross multiply
    173,518x = 239,455.20 × 94,030
  4. Step 4: Simplify right side
    173,518x = 22,515,972,456
  5. Step 5: Solve for x
    x = 22,515,972,456/173,518
  6. Step 6: Final answer
    x = 129,761.60

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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.