Home / 228,145.83-342,043.79-139,441.11

Finding the Fourth Proportional to 228,145.83, 342,043.79 and 139,441.11

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Solution

The fourth proportional to 228,145.83, 342,043.79 and 139,441.11 is: 209,054.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,145.83 : 342,043.79 = 139,441.11 : x
  2. Step 2: Convert to fraction form
    228,145.83/342,043.79 = 139,441.11/x
  3. Step 3: Cross multiply
    228,145.83x = 342,043.79 × 139,441.11
  4. Step 4: Simplify right side
    228,145.83x = 47,694,965,049.00
  5. Step 5: Solve for x
    x = 47,694,965,049.00/228,145.83
  6. Step 6: Final answer
    x = 209,054.73

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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.