Home / 157,918.40-217,940.34-89,956.64

Finding the Fourth Proportional to 157,918.40, 217,940.34 and 89,956.64

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Solution

The fourth proportional to 157,918.40, 217,940.34 and 89,956.64 is: 124,147.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,918.40 : 217,940.34 = 89,956.64 : x
  2. Step 2: Convert to fraction form
    157,918.40/217,940.34 = 89,956.64/x
  3. Step 3: Cross multiply
    157,918.40x = 217,940.34 × 89,956.64
  4. Step 4: Simplify right side
    157,918.40x = 19,605,180,706.86
  5. Step 5: Solve for x
    x = 19,605,180,706.86/157,918.40
  6. Step 6: Final answer
    x = 124,147.54

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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.