Home / 149,442.39-206,227.84-81,459.95

Finding the Fourth Proportional to 149,442.39, 206,227.84 and 81,459.95

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Solution

The fourth proportional to 149,442.39, 206,227.84 and 81,459.95 is: 112,413.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,442.39 : 206,227.84 = 81,459.95 : x
  2. Step 2: Convert to fraction form
    149,442.39/206,227.84 = 81,459.95/x
  3. Step 3: Cross multiply
    149,442.39x = 206,227.84 × 81,459.95
  4. Step 4: Simplify right side
    149,442.39x = 16,799,309,535.01
  5. Step 5: Solve for x
    x = 16,799,309,535.01/149,442.39
  6. Step 6: Final answer
    x = 112,413.28

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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.