Home / 139,325.55-208,922.45-53,976.39

Finding the Fourth Proportional to 139,325.55, 208,922.45 and 53,976.39

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Solution

The fourth proportional to 139,325.55, 208,922.45 and 53,976.39 is: 80,939.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,325.55 : 208,922.45 = 53,976.39 : x
  2. Step 2: Convert to fraction form
    139,325.55/208,922.45 = 53,976.39/x
  3. Step 3: Cross multiply
    139,325.55x = 208,922.45 × 53,976.39
  4. Step 4: Simplify right side
    139,325.55x = 11,276,879,371.07
  5. Step 5: Solve for x
    x = 11,276,879,371.07/139,325.55
  6. Step 6: Final answer
    x = 80,939.06

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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.