Home / 185,715.72-278,684.24-67,396.28

Finding the Fourth Proportional to 185,715.72, 278,684.24 and 67,396.28

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Solution

The fourth proportional to 185,715.72, 278,684.24 and 67,396.28 is: 101,134.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,715.72 : 278,684.24 = 67,396.28 : x
  2. Step 2: Convert to fraction form
    185,715.72/278,684.24 = 67,396.28/x
  3. Step 3: Cross multiply
    185,715.72x = 278,684.24 × 67,396.28
  4. Step 4: Simplify right side
    185,715.72x = 18,782,281,070.63
  5. Step 5: Solve for x
    x = 18,782,281,070.63/185,715.72
  6. Step 6: Final answer
    x = 101,134.58

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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.