Home / 148,699.41-205,138.21-88,272.60

Finding the Fourth Proportional to 148,699.41, 205,138.21 and 88,272.60

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Solution

The fourth proportional to 148,699.41, 205,138.21 and 88,272.60 is: 121,776.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,699.41 : 205,138.21 = 88,272.60 : x
  2. Step 2: Convert to fraction form
    148,699.41/205,138.21 = 88,272.60/x
  3. Step 3: Cross multiply
    148,699.41x = 205,138.21 × 88,272.60
  4. Step 4: Simplify right side
    148,699.41x = 18,108,083,156.05
  5. Step 5: Solve for x
    x = 18,108,083,156.05/148,699.41
  6. Step 6: Final answer
    x = 121,776.43

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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.