Home / 235,184.96-324,519.24-139,689.20

Finding the Fourth Proportional to 235,184.96, 324,519.24 and 139,689.20

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Solution

The fourth proportional to 235,184.96, 324,519.24 and 139,689.20 is: 192,749.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,184.96 : 324,519.24 = 139,689.20 : x
  2. Step 2: Convert to fraction form
    235,184.96/324,519.24 = 139,689.20/x
  3. Step 3: Cross multiply
    235,184.96x = 324,519.24 × 139,689.20
  4. Step 4: Simplify right side
    235,184.96x = 45,331,833,020.21
  5. Step 5: Solve for x
    x = 45,331,833,020.21/235,184.96
  6. Step 6: Final answer
    x = 192,749.71

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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.