Home / 211,163.64-291,172.33-134,561.40

Finding the Fourth Proportional to 211,163.64, 291,172.33 and 134,561.40

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Solution

The fourth proportional to 211,163.64, 291,172.33 and 134,561.40 is: 185,545.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,163.64 : 291,172.33 = 134,561.40 : x
  2. Step 2: Convert to fraction form
    211,163.64/291,172.33 = 134,561.40/x
  3. Step 3: Cross multiply
    211,163.64x = 291,172.33 × 134,561.40
  4. Step 4: Simplify right side
    211,163.64x = 39,180,556,785.15
  5. Step 5: Solve for x
    x = 39,180,556,785.15/211,163.64
  6. Step 6: Final answer
    x = 185,545.94

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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.