Home / 127,245.20-190,867.80-97,811.60

Finding the Fourth Proportional to 127,245.20, 190,867.80 and 97,811.60

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Solution

The fourth proportional to 127,245.20, 190,867.80 and 97,811.60 is: 146,717.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,245.20 : 190,867.80 = 97,811.60 : x
  2. Step 2: Convert to fraction form
    127,245.20/190,867.80 = 97,811.60/x
  3. Step 3: Cross multiply
    127,245.20x = 190,867.80 × 97,811.60
  4. Step 4: Simplify right side
    127,245.20x = 18,669,084,906.48
  5. Step 5: Solve for x
    x = 18,669,084,906.48/127,245.20
  6. Step 6: Final answer
    x = 146,717.40

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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.