Home / 139,029.20-208,556.08-39,190.24

Finding the Fourth Proportional to 139,029.20, 208,556.08 and 39,190.24

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Solution

The fourth proportional to 139,029.20, 208,556.08 and 39,190.24 is: 58,788.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,029.20 : 208,556.08 = 39,190.24 : x
  2. Step 2: Convert to fraction form
    139,029.20/208,556.08 = 39,190.24/x
  3. Step 3: Cross multiply
    139,029.20x = 208,556.08 × 39,190.24
  4. Step 4: Simplify right side
    139,029.20x = 8,173,362,828.66
  5. Step 5: Solve for x
    x = 8,173,362,828.66/139,029.20
  6. Step 6: Final answer
    x = 58,788.82

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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.