Home / 212,856.22-293,720.82-131,171.77

Finding the Fourth Proportional to 212,856.22, 293,720.82 and 131,171.77

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Solution

The fourth proportional to 212,856.22, 293,720.82 and 131,171.77 is: 181,004.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,856.22 : 293,720.82 = 131,171.77 : x
  2. Step 2: Convert to fraction form
    212,856.22/293,720.82 = 131,171.77/x
  3. Step 3: Cross multiply
    212,856.22x = 293,720.82 × 131,171.77
  4. Step 4: Simplify right side
    212,856.22x = 38,527,879,845.25
  5. Step 5: Solve for x
    x = 38,527,879,845.25/212,856.22
  6. Step 6: Final answer
    x = 181,004.25

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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.