Home / 157,515.72-236,410.20-82,688.73

Finding the Fourth Proportional to 157,515.72, 236,410.20 and 82,688.73

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Solution

The fourth proportional to 157,515.72, 236,410.20 and 82,688.73 is: 124,104.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,515.72 : 236,410.20 = 82,688.73 : x
  2. Step 2: Convert to fraction form
    157,515.72/236,410.20 = 82,688.73/x
  3. Step 3: Cross multiply
    157,515.72x = 236,410.20 × 82,688.73
  4. Step 4: Simplify right side
    157,515.72x = 19,548,459,197.05
  5. Step 5: Solve for x
    x = 19,548,459,197.05/157,515.72
  6. Step 6: Final answer
    x = 124,104.81

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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.