Home / 139,151.13-208,756.94-45,653.37

Finding the Fourth Proportional to 139,151.13, 208,756.94 and 45,653.37

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Solution

The fourth proportional to 139,151.13, 208,756.94 and 45,653.37 is: 68,489.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,151.13 : 208,756.94 = 45,653.37 : x
  2. Step 2: Convert to fraction form
    139,151.13/208,756.94 = 45,653.37/x
  3. Step 3: Cross multiply
    139,151.13x = 208,756.94 × 45,653.37
  4. Step 4: Simplify right side
    139,151.13x = 9,530,457,593.62
  5. Step 5: Solve for x
    x = 9,530,457,593.62/139,151.13
  6. Step 6: Final answer
    x = 68,489.98

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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.