Home / 157,856.26-217,844.85-86,240.92

Finding the Fourth Proportional to 157,856.26, 217,844.85 and 86,240.92

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Solution

The fourth proportional to 157,856.26, 217,844.85 and 86,240.92 is: 119,014.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,856.26 : 217,844.85 = 86,240.92 : x
  2. Step 2: Convert to fraction form
    157,856.26/217,844.85 = 86,240.92/x
  3. Step 3: Cross multiply
    157,856.26x = 217,844.85 × 86,240.92
  4. Step 4: Simplify right side
    157,856.26x = 18,787,140,281.26
  5. Step 5: Solve for x
    x = 18,787,140,281.26/157,856.26
  6. Step 6: Final answer
    x = 119,014.22

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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.