Home / 123,021.20-184,272.60-99,693.20

Finding the Fourth Proportional to 123,021.20, 184,272.60 and 99,693.20

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Solution

The fourth proportional to 123,021.20, 184,272.60 and 99,693.20 is: 149,329.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,021.20 : 184,272.60 = 99,693.20 : x
  2. Step 2: Convert to fraction form
    123,021.20/184,272.60 = 99,693.20/x
  3. Step 3: Cross multiply
    123,021.20x = 184,272.60 × 99,693.20
  4. Step 4: Simplify right side
    123,021.20x = 18,370,725,166.32
  5. Step 5: Solve for x
    x = 18,370,725,166.32/123,021.20
  6. Step 6: Final answer
    x = 149,329.75

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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.