Home / 157,619.92-217,511.26-85,999.92

Finding the Fourth Proportional to 157,619.92, 217,511.26 and 85,999.92

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Solution

The fourth proportional to 157,619.92, 217,511.26 and 85,999.92 is: 118,677.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,619.92 : 217,511.26 = 85,999.92 : x
  2. Step 2: Convert to fraction form
    157,619.92/217,511.26 = 85,999.92/x
  3. Step 3: Cross multiply
    157,619.92x = 217,511.26 × 85,999.92
  4. Step 4: Simplify right side
    157,619.92x = 18,705,950,959.10
  5. Step 5: Solve for x
    x = 18,705,950,959.10/157,619.92
  6. Step 6: Final answer
    x = 118,677.58

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1.5x scale

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.