Home / 118,887.86-178,332.47-30,141.56

Finding the Fourth Proportional to 118,887.86, 178,332.47 and 30,141.56

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Solution

The fourth proportional to 118,887.86, 178,332.47 and 30,141.56 is: 45,212.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,887.86 : 178,332.47 = 30,141.56 : x
  2. Step 2: Convert to fraction form
    118,887.86/178,332.47 = 30,141.56/x
  3. Step 3: Cross multiply
    118,887.86x = 178,332.47 × 30,141.56
  4. Step 4: Simplify right side
    118,887.86x = 5,375,218,844.45
  5. Step 5: Solve for x
    x = 5,375,218,844.45/118,887.86
  6. Step 6: Final answer
    x = 45,212.51

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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.