Home / 157,856.07-217,846.80-86,241.54

Finding the Fourth Proportional to 157,856.07, 217,846.80 and 86,241.54

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Solution

The fourth proportional to 157,856.07, 217,846.80 and 86,241.54 is: 119,016.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,856.07 : 217,846.80 = 86,241.54 : x
  2. Step 2: Convert to fraction form
    157,856.07/217,846.80 = 86,241.54/x
  3. Step 3: Cross multiply
    157,856.07x = 217,846.80 × 86,241.54
  4. Step 4: Simplify right side
    157,856.07x = 18,787,443,516.07
  5. Step 5: Solve for x
    x = 18,787,443,516.07/157,856.07
  6. Step 6: Final answer
    x = 119,016.29

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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.