Home / 150,770.15-208,063.09-87,108

Finding the Fourth Proportional to 150,770.15, 208,063.09 and 87,108

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Solution

The fourth proportional to 150,770.15, 208,063.09 and 87,108 is: 120,209.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,770.15 : 208,063.09 = 87,108 : x
  2. Step 2: Convert to fraction form
    150,770.15/208,063.09 = 87,108/x
  3. Step 3: Cross multiply
    150,770.15x = 208,063.09 × 87,108
  4. Step 4: Simplify right side
    150,770.15x = 18,123,959,643.72
  5. Step 5: Solve for x
    x = 18,123,959,643.72/150,770.15
  6. Step 6: Final answer
    x = 120,209.20

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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.