Home / 127,047.91-190,532.85-87,856.87

Finding the Fourth Proportional to 127,047.91, 190,532.85 and 87,856.87

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Solution

The fourth proportional to 127,047.91, 190,532.85 and 87,856.87 is: 131,758.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,047.91 : 190,532.85 = 87,856.87 : x
  2. Step 2: Convert to fraction form
    127,047.91/190,532.85 = 87,856.87/x
  3. Step 3: Cross multiply
    127,047.91x = 190,532.85 × 87,856.87
  4. Step 4: Simplify right side
    127,047.91x = 16,739,619,833.18
  5. Step 5: Solve for x
    x = 16,739,619,833.18/127,047.91
  6. Step 6: Final answer
    x = 131,758.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.