Home / 211,052.86-291,195.21-135,645.10

Finding the Fourth Proportional to 211,052.86, 291,195.21 and 135,645.10

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Solution

The fourth proportional to 211,052.86, 291,195.21 and 135,645.10 is: 187,153.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,052.86 : 291,195.21 = 135,645.10 : x
  2. Step 2: Convert to fraction form
    211,052.86/291,195.21 = 135,645.10/x
  3. Step 3: Cross multiply
    211,052.86x = 291,195.21 × 135,645.10
  4. Step 4: Simplify right side
    211,052.86x = 39,499,203,379.97
  5. Step 5: Solve for x
    x = 39,499,203,379.97/211,052.86
  6. Step 6: Final answer
    x = 187,153.13

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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.