Home / 128,984.22-193,551.66-54,098.64

Finding the Fourth Proportional to 128,984.22, 193,551.66 and 54,098.64

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Solution

The fourth proportional to 128,984.22, 193,551.66 and 54,098.64 is: 81,179.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,984.22 : 193,551.66 = 54,098.64 : x
  2. Step 2: Convert to fraction form
    128,984.22/193,551.66 = 54,098.64/x
  3. Step 3: Cross multiply
    128,984.22x = 193,551.66 × 54,098.64
  4. Step 4: Simplify right side
    128,984.22x = 10,470,881,575.74
  5. Step 5: Solve for x
    x = 10,470,881,575.74/128,984.22
  6. Step 6: Final answer
    x = 81,179.55

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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.