Home / 144,090.96-198,842.22-80,434.68

Finding the Fourth Proportional to 144,090.96, 198,842.22 and 80,434.68

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Solution

The fourth proportional to 144,090.96, 198,842.22 and 80,434.68 is: 110,998.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,090.96 : 198,842.22 = 80,434.68 : x
  2. Step 2: Convert to fraction form
    144,090.96/198,842.22 = 80,434.68/x
  3. Step 3: Cross multiply
    144,090.96x = 198,842.22 × 80,434.68
  4. Step 4: Simplify right side
    144,090.96x = 15,993,810,336.19
  5. Step 5: Solve for x
    x = 15,993,810,336.19/144,090.96
  6. Step 6: Final answer
    x = 110,998.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.