Home / 139,135.92-208,732.05-59,173.71

Finding the Fourth Proportional to 139,135.92, 208,732.05 and 59,173.71

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Solution

The fourth proportional to 139,135.92, 208,732.05 and 59,173.71 is: 88,772.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,135.92 : 208,732.05 = 59,173.71 : x
  2. Step 2: Convert to fraction form
    139,135.92/208,732.05 = 59,173.71/x
  3. Step 3: Cross multiply
    139,135.92x = 208,732.05 × 59,173.71
  4. Step 4: Simplify right side
    139,135.92x = 12,351,449,794.41
  5. Step 5: Solve for x
    x = 12,351,449,794.41/139,135.92
  6. Step 6: Final answer
    x = 88,772.55

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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.