Home / 212,041.32-318,093.48-69,860.36

Finding the Fourth Proportional to 212,041.32, 318,093.48 and 69,860.36

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Solution

The fourth proportional to 212,041.32, 318,093.48 and 69,860.36 is: 104,800.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,041.32 : 318,093.48 = 69,860.36 : x
  2. Step 2: Convert to fraction form
    212,041.32/318,093.48 = 69,860.36/x
  3. Step 3: Cross multiply
    212,041.32x = 318,093.48 × 69,860.36
  4. Step 4: Simplify right side
    212,041.32x = 22,222,123,435.99
  5. Step 5: Solve for x
    x = 22,222,123,435.99/212,041.32
  6. Step 6: Final answer
    x = 104,800.91

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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.