Home / 128,742.60-193,066.41-44,481.14

Finding the Fourth Proportional to 128,742.60, 193,066.41 and 44,481.14

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Solution

The fourth proportional to 128,742.60, 193,066.41 and 44,481.14 is: 66,705.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,742.60 : 193,066.41 = 44,481.14 : x
  2. Step 2: Convert to fraction form
    128,742.60/193,066.41 = 44,481.14/x
  3. Step 3: Cross multiply
    128,742.60x = 193,066.41 × 44,481.14
  4. Step 4: Simplify right side
    128,742.60x = 8,587,813,047.18
  5. Step 5: Solve for x
    x = 8,587,813,047.18/128,742.60
  6. Step 6: Final answer
    x = 66,705.29

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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.