Home / 127,945.20-191,946.60-75,327.60

Finding the Fourth Proportional to 127,945.20, 191,946.60 and 75,327.60

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Solution

The fourth proportional to 127,945.20, 191,946.60 and 75,327.60 is: 113,008.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,945.20 : 191,946.60 = 75,327.60 : x
  2. Step 2: Convert to fraction form
    127,945.20/191,946.60 = 75,327.60/x
  3. Step 3: Cross multiply
    127,945.20x = 191,946.60 × 75,327.60
  4. Step 4: Simplify right side
    127,945.20x = 14,458,876,706.16
  5. Step 5: Solve for x
    x = 14,458,876,706.16/127,945.20
  6. Step 6: Final answer
    x = 113,008.36

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1.5x scale

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.