Home / 149,113.90-205,743.40-108,849.61

Finding the Fourth Proportional to 149,113.90, 205,743.40 and 108,849.61

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Solution

The fourth proportional to 149,113.90, 205,743.40 and 108,849.61 is: 150,187.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,113.90 : 205,743.40 = 108,849.61 : x
  2. Step 2: Convert to fraction form
    149,113.90/205,743.40 = 108,849.61/x
  3. Step 3: Cross multiply
    149,113.90x = 205,743.40 × 108,849.61
  4. Step 4: Simplify right side
    149,113.90x = 22,395,088,850.07
  5. Step 5: Solve for x
    x = 22,395,088,850.07/149,113.90
  6. Step 6: Final answer
    x = 150,187.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.