Home / 127,313.52-190,965.42-43,080

Finding the Fourth Proportional to 127,313.52, 190,965.42 and 43,080

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Solution

The fourth proportional to 127,313.52, 190,965.42 and 43,080 is: 64,618.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,313.52 : 190,965.42 = 43,080 : x
  2. Step 2: Convert to fraction form
    127,313.52/190,965.42 = 43,080/x
  3. Step 3: Cross multiply
    127,313.52x = 190,965.42 × 43,080
  4. Step 4: Simplify right side
    127,313.52x = 8,226,790,293.60
  5. Step 5: Solve for x
    x = 8,226,790,293.60/127,313.52
  6. Step 6: Final answer
    x = 64,618.36

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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.