Home / 125,601.64-188,562.33-81,413.30

Finding the Fourth Proportional to 125,601.64, 188,562.33 and 81,413.30

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Solution

The fourth proportional to 125,601.64, 188,562.33 and 81,413.30 is: 122,223.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,601.64 : 188,562.33 = 81,413.30 : x
  2. Step 2: Convert to fraction form
    125,601.64/188,562.33 = 81,413.30/x
  3. Step 3: Cross multiply
    125,601.64x = 188,562.33 × 81,413.30
  4. Step 4: Simplify right side
    125,601.64x = 15,351,482,012.39
  5. Step 5: Solve for x
    x = 15,351,482,012.39/125,601.64
  6. Step 6: Final answer
    x = 122,223.58

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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.