Home / 228,656.19-315,589.65-131,922.51

Finding the Fourth Proportional to 228,656.19, 315,589.65 and 131,922.51

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Solution

The fourth proportional to 228,656.19, 315,589.65 and 131,922.51 is: 182,078.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,656.19 : 315,589.65 = 131,922.51 : x
  2. Step 2: Convert to fraction form
    228,656.19/315,589.65 = 131,922.51/x
  3. Step 3: Cross multiply
    228,656.19x = 315,589.65 × 131,922.51
  4. Step 4: Simplify right side
    228,656.19x = 41,633,378,758.02
  5. Step 5: Solve for x
    x = 41,633,378,758.02/228,656.19
  6. Step 6: Final answer
    x = 182,078.51

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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.