Home / 127,739.52-191,610.72-48,857.76

Finding the Fourth Proportional to 127,739.52, 191,610.72 and 48,857.76

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Solution

The fourth proportional to 127,739.52, 191,610.72 and 48,857.76 is: 73,287.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,739.52 : 191,610.72 = 48,857.76 : x
  2. Step 2: Convert to fraction form
    127,739.52/191,610.72 = 48,857.76/x
  3. Step 3: Cross multiply
    127,739.52x = 191,610.72 × 48,857.76
  4. Step 4: Simplify right side
    127,739.52x = 9,361,670,571.19
  5. Step 5: Solve for x
    x = 9,361,670,571.19/127,739.52
  6. Step 6: Final answer
    x = 73,287.19

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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.