Home / 118,910.42-178,384.06-40,018.50

Finding the Fourth Proportional to 118,910.42, 178,384.06 and 40,018.50

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Solution

The fourth proportional to 118,910.42, 178,384.06 and 40,018.50 is: 60,033.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,910.42 : 178,384.06 = 40,018.50 : x
  2. Step 2: Convert to fraction form
    118,910.42/178,384.06 = 40,018.50/x
  3. Step 3: Cross multiply
    118,910.42x = 178,384.06 × 40,018.50
  4. Step 4: Simplify right side
    118,910.42x = 7,138,662,505.11
  5. Step 5: Solve for x
    x = 7,138,662,505.11/118,910.42
  6. Step 6: Final answer
    x = 60,033.95

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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.