Home / 212,006.15-318,004.23-52,081.83

Finding the Fourth Proportional to 212,006.15, 318,004.23 and 52,081.83

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Solution

The fourth proportional to 212,006.15, 318,004.23 and 52,081.83 is: 78,121.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,006.15 : 318,004.23 = 52,081.83 : x
  2. Step 2: Convert to fraction form
    212,006.15/318,004.23 = 52,081.83/x
  3. Step 3: Cross multiply
    212,006.15x = 318,004.23 × 52,081.83
  4. Step 4: Simplify right side
    212,006.15x = 16,562,242,246.14
  5. Step 5: Solve for x
    x = 16,562,242,246.14/212,006.15
  6. Step 6: Final answer
    x = 78,121.52

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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.