Home / 98,004.45-147,080.66-71,777.19

Finding the Fourth Proportional to 98,004.45, 147,080.66 and 71,777.19

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Solution

The fourth proportional to 98,004.45, 147,080.66 and 71,777.19 is: 107,719.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,004.45 : 147,080.66 = 71,777.19 : x
  2. Step 2: Convert to fraction form
    98,004.45/147,080.66 = 71,777.19/x
  3. Step 3: Cross multiply
    98,004.45x = 147,080.66 × 71,777.19
  4. Step 4: Simplify right side
    98,004.45x = 10,557,036,119.26
  5. Step 5: Solve for x
    x = 10,557,036,119.26/98,004.45
  6. Step 6: Final answer
    x = 107,719.97

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1.5x scale

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.