Home / 150,838.97-208,145.63-87,180.89

Finding the Fourth Proportional to 150,838.97, 208,145.63 and 87,180.89

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Solution

The fourth proportional to 150,838.97, 208,145.63 and 87,180.89 is: 120,302.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,838.97 : 208,145.63 = 87,180.89 : x
  2. Step 2: Convert to fraction form
    150,838.97/208,145.63 = 87,180.89/x
  3. Step 3: Cross multiply
    150,838.97x = 208,145.63 × 87,180.89
  4. Step 4: Simplify right side
    150,838.97x = 18,146,321,273.01
  5. Step 5: Solve for x
    x = 18,146,321,273.01/150,838.97
  6. Step 6: Final answer
    x = 120,302.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.