Home / 139,933.20-209,899.80-134,101.20

Finding the Fourth Proportional to 139,933.20, 209,899.80 and 134,101.20

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Solution

The fourth proportional to 139,933.20, 209,899.80 and 134,101.20 is: 201,151.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,933.20 : 209,899.80 = 134,101.20 : x
  2. Step 2: Convert to fraction form
    139,933.20/209,899.80 = 134,101.20/x
  3. Step 3: Cross multiply
    139,933.20x = 209,899.80 × 134,101.20
  4. Step 4: Simplify right side
    139,933.20x = 28,147,815,059.76
  5. Step 5: Solve for x
    x = 28,147,815,059.76/139,933.20
  6. Step 6: Final answer
    x = 201,151.80

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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.