Home / 212,397.15-293,067.60-135,857.61

Finding the Fourth Proportional to 212,397.15, 293,067.60 and 135,857.61

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Solution

The fourth proportional to 212,397.15, 293,067.60 and 135,857.61 is: 187,457.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,397.15 : 293,067.60 = 135,857.61 : x
  2. Step 2: Convert to fraction form
    212,397.15/293,067.60 = 135,857.61/x
  3. Step 3: Cross multiply
    212,397.15x = 293,067.60 × 135,857.61
  4. Step 4: Simplify right side
    212,397.15x = 39,815,463,704.44
  5. Step 5: Solve for x
    x = 39,815,463,704.44/212,397.15
  6. Step 6: Final answer
    x = 187,457.62

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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.