Home / 171,678.10-236,859-103,669.18

Finding the Fourth Proportional to 171,678.10, 236,859 and 103,669.18

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Solution

The fourth proportional to 171,678.10, 236,859 and 103,669.18 is: 143,029.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,678.10 : 236,859 = 103,669.18 : x
  2. Step 2: Convert to fraction form
    171,678.10/236,859 = 103,669.18/x
  3. Step 3: Cross multiply
    171,678.10x = 236,859 × 103,669.18
  4. Step 4: Simplify right side
    171,678.10x = 24,554,978,305.62
  5. Step 5: Solve for x
    x = 24,554,978,305.62/171,678.10
  6. Step 6: Final answer
    x = 143,029.18

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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.