Home / 139,029.20-208,560.20-104,190.29

Finding the Fourth Proportional to 139,029.20, 208,560.20 and 104,190.29

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Solution

The fourth proportional to 139,029.20, 208,560.20 and 104,190.29 is: 156,297.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,029.20 : 208,560.20 = 104,190.29 : x
  2. Step 2: Convert to fraction form
    139,029.20/208,560.20 = 104,190.29/x
  3. Step 3: Cross multiply
    139,029.20x = 208,560.20 × 104,190.29
  4. Step 4: Simplify right side
    139,029.20x = 21,729,946,156.71
  5. Step 5: Solve for x
    x = 21,729,946,156.71/139,029.20
  6. Step 6: Final answer
    x = 156,297.72

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1.5x scale

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.