Home / 212,037.13-318,094.71-69,890.86

Finding the Fourth Proportional to 212,037.13, 318,094.71 and 69,890.86

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Solution

The fourth proportional to 212,037.13, 318,094.71 and 69,890.86 is: 104,849.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,037.13 : 318,094.71 = 69,890.86 : x
  2. Step 2: Convert to fraction form
    212,037.13/318,094.71 = 69,890.86/x
  3. Step 3: Cross multiply
    212,037.13x = 318,094.71 × 69,890.86
  4. Step 4: Simplify right side
    212,037.13x = 22,231,912,843.35
  5. Step 5: Solve for x
    x = 22,231,912,843.35/212,037.13
  6. Step 6: Final answer
    x = 104,849.15

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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.