Home / 157,734.27-217,676.58-86,117.31

Finding the Fourth Proportional to 157,734.27, 217,676.58 and 86,117.31

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Solution

The fourth proportional to 157,734.27, 217,676.58 and 86,117.31 is: 118,843.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,734.27 : 217,676.58 = 86,117.31 : x
  2. Step 2: Convert to fraction form
    157,734.27/217,676.58 = 86,117.31/x
  3. Step 3: Cross multiply
    157,734.27x = 217,676.58 × 86,117.31
  4. Step 4: Simplify right side
    157,734.27x = 18,745,721,519.60
  5. Step 5: Solve for x
    x = 18,745,721,519.60/157,734.27
  6. Step 6: Final answer
    x = 118,843.68

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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.