Home / 118,887.87-178,332.12-30,141.42

Finding the Fourth Proportional to 118,887.87, 178,332.12 and 30,141.42

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Solution

The fourth proportional to 118,887.87, 178,332.12 and 30,141.42 is: 45,212.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,887.87 : 178,332.12 = 30,141.42 : x
  2. Step 2: Convert to fraction form
    118,887.87/178,332.12 = 30,141.42/x
  3. Step 3: Cross multiply
    118,887.87x = 178,332.12 × 30,141.42
  4. Step 4: Simplify right side
    118,887.87x = 5,375,183,328.41
  5. Step 5: Solve for x
    x = 5,375,183,328.41/118,887.87
  6. Step 6: Final answer
    x = 45,212.21

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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.