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Finding the Fourth Proportional to 138,004.80, 207,007.20 and 95,795.70

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Solution

The fourth proportional to 138,004.80, 207,007.20 and 95,795.70 is: 143,693.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,004.80 : 207,007.20 = 95,795.70 : x
  2. Step 2: Convert to fraction form
    138,004.80/207,007.20 = 95,795.70/x
  3. Step 3: Cross multiply
    138,004.80x = 207,007.20 × 95,795.70
  4. Step 4: Simplify right side
    138,004.80x = 19,830,399,629.04
  5. Step 5: Solve for x
    x = 19,830,399,629.04/138,004.80
  6. Step 6: Final answer
    x = 143,693.55

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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.