Home / 139,204.76-192,102.69-75,542.55

Finding the Fourth Proportional to 139,204.76, 192,102.69 and 75,542.55

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Solution

The fourth proportional to 139,204.76, 192,102.69 and 75,542.55 is: 104,248.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,204.76 : 192,102.69 = 75,542.55 : x
  2. Step 2: Convert to fraction form
    139,204.76/192,102.69 = 75,542.55/x
  3. Step 3: Cross multiply
    139,204.76x = 192,102.69 × 75,542.55
  4. Step 4: Simplify right side
    139,204.76x = 14,511,927,064.46
  5. Step 5: Solve for x
    x = 14,511,927,064.46/139,204.76
  6. Step 6: Final answer
    x = 104,248.78

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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.