Home / 157,844.70-236,507.85-131,406.30

Finding the Fourth Proportional to 157,844.70, 236,507.85 and 131,406.30

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Solution

The fourth proportional to 157,844.70, 236,507.85 and 131,406.30 is: 196,893.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,844.70 : 236,507.85 = 131,406.30 : x
  2. Step 2: Convert to fraction form
    157,844.70/236,507.85 = 131,406.30/x
  3. Step 3: Cross multiply
    157,844.70x = 236,507.85 × 131,406.30
  4. Step 4: Simplify right side
    157,844.70x = 31,078,621,489.46
  5. Step 5: Solve for x
    x = 31,078,621,489.46/157,844.70
  6. Step 6: Final answer
    x = 196,893.67

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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.