Home / 127,015.30-190,484.03-87,824.26

Finding the Fourth Proportional to 127,015.30, 190,484.03 and 87,824.26

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Solution

The fourth proportional to 127,015.30, 190,484.03 and 87,824.26 is: 131,709.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,015.30 : 190,484.03 = 87,824.26 : x
  2. Step 2: Convert to fraction form
    127,015.30/190,484.03 = 87,824.26/x
  3. Step 3: Cross multiply
    127,015.30x = 190,484.03 × 87,824.26
  4. Step 4: Simplify right side
    127,015.30x = 16,729,118,719.92
  5. Step 5: Solve for x
    x = 16,729,118,719.92/127,015.30
  6. Step 6: Final answer
    x = 131,709.48

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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.