Home / 212,463.08-293,216.22-121,827.50

Finding the Fourth Proportional to 212,463.08, 293,216.22 and 121,827.50

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Solution

The fourth proportional to 212,463.08, 293,216.22 and 121,827.50 is: 168,131.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,463.08 : 293,216.22 = 121,827.50 : x
  2. Step 2: Convert to fraction form
    212,463.08/293,216.22 = 121,827.50/x
  3. Step 3: Cross multiply
    212,463.08x = 293,216.22 × 121,827.50
  4. Step 4: Simplify right side
    212,463.08x = 35,721,797,575.97
  5. Step 5: Solve for x
    x = 35,721,797,575.97/212,463.08
  6. Step 6: Final answer
    x = 168,131.79

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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.