Home / 211,537.48-291,935.30-139,791.72

Finding the Fourth Proportional to 211,537.48, 291,935.30 and 139,791.72

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Solution

The fourth proportional to 211,537.48, 291,935.30 and 139,791.72 is: 192,921.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,537.48 : 291,935.30 = 139,791.72 : x
  2. Step 2: Convert to fraction form
    211,537.48/291,935.30 = 139,791.72/x
  3. Step 3: Cross multiply
    211,537.48x = 291,935.30 × 139,791.72
  4. Step 4: Simplify right side
    211,537.48x = 40,810,137,715.72
  5. Step 5: Solve for x
    x = 40,810,137,715.72/211,537.48
  6. Step 6: Final answer
    x = 192,921.55

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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.