Home / 127,739.26-176,280.06-71,150.50

Finding the Fourth Proportional to 127,739.26, 176,280.06 and 71,150.50

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Solution

The fourth proportional to 127,739.26, 176,280.06 and 71,150.50 is: 98,187.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,739.26 : 176,280.06 = 71,150.50 : x
  2. Step 2: Convert to fraction form
    127,739.26/176,280.06 = 71,150.50/x
  3. Step 3: Cross multiply
    127,739.26x = 176,280.06 × 71,150.50
  4. Step 4: Simplify right side
    127,739.26x = 12,542,414,409.03
  5. Step 5: Solve for x
    x = 12,542,414,409.03/127,739.26
  6. Step 6: Final answer
    x = 98,187.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.