Home / 212,040.07-318,055.74-69,893.88

Finding the Fourth Proportional to 212,040.07, 318,055.74 and 69,893.88

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Solution

The fourth proportional to 212,040.07, 318,055.74 and 69,893.88 is: 104,839.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,040.07 : 318,055.74 = 69,893.88 : x
  2. Step 2: Convert to fraction form
    212,040.07/318,055.74 = 69,893.88/x
  3. Step 3: Cross multiply
    212,040.07x = 318,055.74 × 69,893.88
  4. Step 4: Simplify right side
    212,040.07x = 22,230,150,059.12
  5. Step 5: Solve for x
    x = 22,230,150,059.12/212,040.07
  6. Step 6: Final answer
    x = 104,839.38

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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.