Home / 211,192.66-316,790.06-53,421.26

Finding the Fourth Proportional to 211,192.66, 316,790.06 and 53,421.26

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Solution

The fourth proportional to 211,192.66, 316,790.06 and 53,421.26 is: 80,132.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,192.66 : 316,790.06 = 53,421.26 : x
  2. Step 2: Convert to fraction form
    211,192.66/316,790.06 = 53,421.26/x
  3. Step 3: Cross multiply
    211,192.66x = 316,790.06 × 53,421.26
  4. Step 4: Simplify right side
    211,192.66x = 16,923,324,091.56
  5. Step 5: Solve for x
    x = 16,923,324,091.56/211,192.66
  6. Step 6: Final answer
    x = 80,132.16

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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.