Home / 98,004.33-147,080.47-71,777.07

Finding the Fourth Proportional to 98,004.33, 147,080.47 and 71,777.07

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Solution

The fourth proportional to 98,004.33, 147,080.47 and 71,777.07 is: 107,719.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,004.33 : 147,080.47 = 71,777.07 : x
  2. Step 2: Convert to fraction form
    98,004.33/147,080.47 = 71,777.07/x
  3. Step 3: Cross multiply
    98,004.33x = 147,080.47 × 71,777.07
  4. Step 4: Simplify right side
    98,004.33x = 10,557,004,275.98
  5. Step 5: Solve for x
    x = 10,557,004,275.98/98,004.33
  6. Step 6: Final answer
    x = 107,719.78

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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.