Home / 128,268.60-192,014.10-96,905.40

Finding the Fourth Proportional to 128,268.60, 192,014.10 and 96,905.40

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Solution

The fourth proportional to 128,268.60, 192,014.10 and 96,905.40 is: 145,064.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,268.60 : 192,014.10 = 96,905.40 : x
  2. Step 2: Convert to fraction form
    128,268.60/192,014.10 = 96,905.40/x
  3. Step 3: Cross multiply
    128,268.60x = 192,014.10 × 96,905.40
  4. Step 4: Simplify right side
    128,268.60x = 18,607,203,166.14
  5. Step 5: Solve for x
    x = 18,607,203,166.14/128,268.60
  6. Step 6: Final answer
    x = 145,064.37

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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.