Home / 104,419.90-156,629.85-72,927.10

Finding the Fourth Proportional to 104,419.90, 156,629.85 and 72,927.10

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Solution

The fourth proportional to 104,419.90, 156,629.85 and 72,927.10 is: 109,390.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,419.90 : 156,629.85 = 72,927.10 : x
  2. Step 2: Convert to fraction form
    104,419.90/156,629.85 = 72,927.10/x
  3. Step 3: Cross multiply
    104,419.90x = 156,629.85 × 72,927.10
  4. Step 4: Simplify right side
    104,419.90x = 11,422,560,733.94
  5. Step 5: Solve for x
    x = 11,422,560,733.94/104,419.90
  6. Step 6: Final answer
    x = 109,390.65

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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.