Home / 157,793.23-217,756.39-86,175.36

Finding the Fourth Proportional to 157,793.23, 217,756.39 and 86,175.36

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Solution

The fourth proportional to 157,793.23, 217,756.39 and 86,175.36 is: 118,922.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,793.23 : 217,756.39 = 86,175.36 : x
  2. Step 2: Convert to fraction form
    157,793.23/217,756.39 = 86,175.36/x
  3. Step 3: Cross multiply
    157,793.23x = 217,756.39 × 86,175.36
  4. Step 4: Simplify right side
    157,793.23x = 18,765,235,300.55
  5. Step 5: Solve for x
    x = 18,765,235,300.55/157,793.23
  6. Step 6: Final answer
    x = 118,922.94

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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.