Home / 118,758.43-178,138.79-30,011.94

Finding the Fourth Proportional to 118,758.43, 178,138.79 and 30,011.94

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Solution

The fourth proportional to 118,758.43, 178,138.79 and 30,011.94 is: 45,018.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,758.43 : 178,138.79 = 30,011.94 : x
  2. Step 2: Convert to fraction form
    118,758.43/178,138.79 = 30,011.94/x
  3. Step 3: Cross multiply
    118,758.43x = 178,138.79 × 30,011.94
  4. Step 4: Simplify right side
    118,758.43x = 5,346,291,309.47
  5. Step 5: Solve for x
    x = 5,346,291,309.47/118,758.43
  6. Step 6: Final answer
    x = 45,018.21

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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.