Home / 120,521.12-180,755.73-49,374

Finding the Fourth Proportional to 120,521.12, 180,755.73 and 49,374

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Solution

The fourth proportional to 120,521.12, 180,755.73 and 49,374 is: 74,050.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,521.12 : 180,755.73 = 49,374 : x
  2. Step 2: Convert to fraction form
    120,521.12/180,755.73 = 49,374/x
  3. Step 3: Cross multiply
    120,521.12x = 180,755.73 × 49,374
  4. Step 4: Simplify right side
    120,521.12x = 8,924,633,413.02
  5. Step 5: Solve for x
    x = 8,924,633,413.02/120,521.12
  6. Step 6: Final answer
    x = 74,050.37

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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.