Home / 400,986.14-601,613.48-131,126.72

Finding the Fourth Proportional to 400,986.14, 601,613.48 and 131,126.72

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Solution

The fourth proportional to 400,986.14, 601,613.48 and 131,126.72 is: 196,733.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,986.14 : 601,613.48 = 131,126.72 : x
  2. Step 2: Convert to fraction form
    400,986.14/601,613.48 = 131,126.72/x
  3. Step 3: Cross multiply
    400,986.14x = 601,613.48 × 131,126.72
  4. Step 4: Simplify right side
    400,986.14x = 78,887,602,340.19
  5. Step 5: Solve for x
    x = 78,887,602,340.19/400,986.14
  6. Step 6: Final answer
    x = 196,733.99

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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.