Home / 130,952.64-196,515-71,829.75

Finding the Fourth Proportional to 130,952.64, 196,515 and 71,829.75

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Solution

The fourth proportional to 130,952.64, 196,515 and 71,829.75 is: 107,791.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,952.64 : 196,515 = 71,829.75 : x
  2. Step 2: Convert to fraction form
    130,952.64/196,515 = 71,829.75/x
  3. Step 3: Cross multiply
    130,952.64x = 196,515 × 71,829.75
  4. Step 4: Simplify right side
    130,952.64x = 14,115,623,321.25
  5. Step 5: Solve for x
    x = 14,115,623,321.25/130,952.64
  6. Step 6: Final answer
    x = 107,791.82

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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.