Home / 151,375.12-208,914-83,399.04

Finding the Fourth Proportional to 151,375.12, 208,914 and 83,399.04

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Solution

The fourth proportional to 151,375.12, 208,914 and 83,399.04 is: 115,099.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,375.12 : 208,914 = 83,399.04 : x
  2. Step 2: Convert to fraction form
    151,375.12/208,914 = 83,399.04/x
  3. Step 3: Cross multiply
    151,375.12x = 208,914 × 83,399.04
  4. Step 4: Simplify right side
    151,375.12x = 17,423,227,042.56
  5. Step 5: Solve for x
    x = 17,423,227,042.56/151,375.12
  6. Step 6: Final answer
    x = 115,099.67

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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.