Home / 151,115.32-208,541.82-83,137.96

Finding the Fourth Proportional to 151,115.32, 208,541.82 and 83,137.96

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Solution

The fourth proportional to 151,115.32, 208,541.82 and 83,137.96 is: 114,731.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,115.32 : 208,541.82 = 83,137.96 : x
  2. Step 2: Convert to fraction form
    151,115.32/208,541.82 = 83,137.96/x
  3. Step 3: Cross multiply
    151,115.32x = 208,541.82 × 83,137.96
  4. Step 4: Simplify right side
    151,115.32x = 17,337,741,489.49
  5. Step 5: Solve for x
    x = 17,337,741,489.49/151,115.32
  6. Step 6: Final answer
    x = 114,731.86

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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.