Home / 212,107.59-318,093.76-69,926.36

Finding the Fourth Proportional to 212,107.59, 318,093.76 and 69,926.36

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Solution

The fourth proportional to 212,107.59, 318,093.76 and 69,926.36 is: 104,867.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,107.59 : 318,093.76 = 69,926.36 : x
  2. Step 2: Convert to fraction form
    212,107.59/318,093.76 = 69,926.36/x
  3. Step 3: Cross multiply
    212,107.59x = 318,093.76 × 69,926.36
  4. Step 4: Simplify right side
    212,107.59x = 22,243,139,395.93
  5. Step 5: Solve for x
    x = 22,243,139,395.93/212,107.59
  6. Step 6: Final answer
    x = 104,867.25

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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.