Home / 139,520.80-209,154.62-50,711.58

Finding the Fourth Proportional to 139,520.80, 209,154.62 and 50,711.58

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Solution

The fourth proportional to 139,520.80, 209,154.62 and 50,711.58 is: 76,021.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,520.80 : 209,154.62 = 50,711.58 : x
  2. Step 2: Convert to fraction form
    139,520.80/209,154.62 = 50,711.58/x
  3. Step 3: Cross multiply
    139,520.80x = 209,154.62 × 50,711.58
  4. Step 4: Simplify right side
    139,520.80x = 10,606,561,244.50
  5. Step 5: Solve for x
    x = 10,606,561,244.50/139,520.80
  6. Step 6: Final answer
    x = 76,021.36

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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.