Home / 118,072.35-177,142.91-38,108.61

Finding the Fourth Proportional to 118,072.35, 177,142.91 and 38,108.61

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Solution

The fourth proportional to 118,072.35, 177,142.91 and 38,108.61 is: 57,174.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,072.35 : 177,142.91 = 38,108.61 : x
  2. Step 2: Convert to fraction form
    118,072.35/177,142.91 = 38,108.61/x
  3. Step 3: Cross multiply
    118,072.35x = 177,142.91 × 38,108.61
  4. Step 4: Simplify right side
    118,072.35x = 6,750,669,880.91
  5. Step 5: Solve for x
    x = 6,750,669,880.91/118,072.35
  6. Step 6: Final answer
    x = 57,174.01

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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.