Home / 139,557.52-209,337.09-34,375.78

Finding the Fourth Proportional to 139,557.52, 209,337.09 and 34,375.78

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Solution

The fourth proportional to 139,557.52, 209,337.09 and 34,375.78 is: 51,563.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,557.52 : 209,337.09 = 34,375.78 : x
  2. Step 2: Convert to fraction form
    139,557.52/209,337.09 = 34,375.78/x
  3. Step 3: Cross multiply
    139,557.52x = 209,337.09 × 34,375.78
  4. Step 4: Simplify right side
    139,557.52x = 7,196,125,751.68
  5. Step 5: Solve for x
    x = 7,196,125,751.68/139,557.52
  6. Step 6: Final answer
    x = 51,563.87

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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.