Home / 146,413.70-219,620.55-128,917.70

Finding the Fourth Proportional to 146,413.70, 219,620.55 and 128,917.70

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Solution

The fourth proportional to 146,413.70, 219,620.55 and 128,917.70 is: 193,376.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,413.70 : 219,620.55 = 128,917.70 : x
  2. Step 2: Convert to fraction form
    146,413.70/219,620.55 = 128,917.70/x
  3. Step 3: Cross multiply
    146,413.70x = 219,620.55 × 128,917.70
  4. Step 4: Simplify right side
    146,413.70x = 28,312,976,178.74
  5. Step 5: Solve for x
    x = 28,312,976,178.74/146,413.70
  6. Step 6: Final answer
    x = 193,376.55

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1.5x scale

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.