Home / 139,505.23-209,226.32-39,663.24

Finding the Fourth Proportional to 139,505.23, 209,226.32 and 39,663.24

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Solution

The fourth proportional to 139,505.23, 209,226.32 and 39,663.24 is: 59,485.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,505.23 : 209,226.32 = 39,663.24 : x
  2. Step 2: Convert to fraction form
    139,505.23/209,226.32 = 39,663.24/x
  3. Step 3: Cross multiply
    139,505.23x = 209,226.32 × 39,663.24
  4. Step 4: Simplify right side
    139,505.23x = 8,298,593,744.48
  5. Step 5: Solve for x
    x = 8,298,593,744.48/139,505.23
  6. Step 6: Final answer
    x = 59,485.90

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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.