Home / 212,434.74-318,849.21-107,327.52

Finding the Fourth Proportional to 212,434.74, 318,849.21 and 107,327.52

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Solution

The fourth proportional to 212,434.74, 318,849.21 and 107,327.52 is: 161,090.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,434.74 : 318,849.21 = 107,327.52 : x
  2. Step 2: Convert to fraction form
    212,434.74/318,849.21 = 107,327.52/x
  3. Step 3: Cross multiply
    212,434.74x = 318,849.21 × 107,327.52
  4. Step 4: Simplify right side
    212,434.74x = 34,221,294,963.26
  5. Step 5: Solve for x
    x = 34,221,294,963.26/212,434.74
  6. Step 6: Final answer
    x = 161,090.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.