Home / 145,421.71-218,249.22-75,321.07

Finding the Fourth Proportional to 145,421.71, 218,249.22 and 75,321.07

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Solution

The fourth proportional to 145,421.71, 218,249.22 and 75,321.07 is: 113,042.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,421.71 : 218,249.22 = 75,321.07 : x
  2. Step 2: Convert to fraction form
    145,421.71/218,249.22 = 75,321.07/x
  3. Step 3: Cross multiply
    145,421.71x = 218,249.22 × 75,321.07
  4. Step 4: Simplify right side
    145,421.71x = 16,438,764,777.07
  5. Step 5: Solve for x
    x = 16,438,764,777.07/145,421.71
  6. Step 6: Final answer
    x = 113,042.03

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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.