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Finding the Fourth Proportional to 128,600.60, 193,025.40 and 62,087.40

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Solution

The fourth proportional to 128,600.60, 193,025.40 and 62,087.40 is: 93,191.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,600.60 : 193,025.40 = 62,087.40 : x
  2. Step 2: Convert to fraction form
    128,600.60/193,025.40 = 62,087.40/x
  3. Step 3: Cross multiply
    128,600.60x = 193,025.40 × 62,087.40
  4. Step 4: Simplify right side
    128,600.60x = 11,984,445,219.96
  5. Step 5: Solve for x
    x = 11,984,445,219.96/128,600.60
  6. Step 6: Final answer
    x = 93,191.21

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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.