Home / 157,546.74-217,419.78-85,930.68

Finding the Fourth Proportional to 157,546.74, 217,419.78 and 85,930.68

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Solution

The fourth proportional to 157,546.74, 217,419.78 and 85,930.68 is: 118,587.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,546.74 : 217,419.78 = 85,930.68 : x
  2. Step 2: Convert to fraction form
    157,546.74/217,419.78 = 85,930.68/x
  3. Step 3: Cross multiply
    157,546.74x = 217,419.78 × 85,930.68
  4. Step 4: Simplify right side
    157,546.74x = 18,683,029,540.85
  5. Step 5: Solve for x
    x = 18,683,029,540.85/157,546.74
  6. Step 6: Final answer
    x = 118,587.22

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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.