Home / 139,723.21-209,582.74-34,542.15

Finding the Fourth Proportional to 139,723.21, 209,582.74 and 34,542.15

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Solution

The fourth proportional to 139,723.21, 209,582.74 and 34,542.15 is: 51,812.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,723.21 : 209,582.74 = 34,542.15 : x
  2. Step 2: Convert to fraction form
    139,723.21/209,582.74 = 34,542.15/x
  3. Step 3: Cross multiply
    139,723.21x = 209,582.74 × 34,542.15
  4. Step 4: Simplify right side
    139,723.21x = 7,239,438,442.49
  5. Step 5: Solve for x
    x = 7,239,438,442.49/139,723.21
  6. Step 6: Final answer
    x = 51,812.71

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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.