Home / 139,712.28-209,442.05-50,945.03

Finding the Fourth Proportional to 139,712.28, 209,442.05 and 50,945.03

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Solution

The fourth proportional to 139,712.28, 209,442.05 and 50,945.03 is: 76,371.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,712.28 : 209,442.05 = 50,945.03 : x
  2. Step 2: Convert to fraction form
    139,712.28/209,442.05 = 50,945.03/x
  3. Step 3: Cross multiply
    139,712.28x = 209,442.05 × 50,945.03
  4. Step 4: Simplify right side
    139,712.28x = 10,670,030,600.66
  5. Step 5: Solve for x
    x = 10,670,030,600.66/139,712.28
  6. Step 6: Final answer
    x = 76,371.46

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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.