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Finding the Fourth Proportional to 139,204.50, 192,102.35 and 75,542.31

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Solution

The fourth proportional to 139,204.50, 192,102.35 and 75,542.31 is: 104,248.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,204.50 : 192,102.35 = 75,542.31 : x
  2. Step 2: Convert to fraction form
    139,204.50/192,102.35 = 75,542.31/x
  3. Step 3: Cross multiply
    139,204.50x = 192,102.35 × 75,542.31
  4. Step 4: Simplify right side
    139,204.50x = 14,511,854,897.72
  5. Step 5: Solve for x
    x = 14,511,854,897.72/139,204.50
  6. Step 6: Final answer
    x = 104,248.46

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1.5x scale

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.