Home / 127,851.20-191,805.60-75,233.60

Finding the Fourth Proportional to 127,851.20, 191,805.60 and 75,233.60

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Solution

The fourth proportional to 127,851.20, 191,805.60 and 75,233.60 is: 112,867.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,851.20 : 191,805.60 = 75,233.60 : x
  2. Step 2: Convert to fraction form
    127,851.20/191,805.60 = 75,233.60/x
  3. Step 3: Cross multiply
    127,851.20x = 191,805.60 × 75,233.60
  4. Step 4: Simplify right side
    127,851.20x = 14,430,225,788.16
  5. Step 5: Solve for x
    x = 14,430,225,788.16/127,851.20
  6. Step 6: Final answer
    x = 112,867.35

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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.