Home / 189,443.45-261,413.35-104,555.05

Finding the Fourth Proportional to 189,443.45, 261,413.35 and 104,555.05

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Solution

The fourth proportional to 189,443.45, 261,413.35 and 104,555.05 is: 144,275.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,443.45 : 261,413.35 = 104,555.05 : x
  2. Step 2: Convert to fraction form
    189,443.45/261,413.35 = 104,555.05/x
  3. Step 3: Cross multiply
    189,443.45x = 261,413.35 × 104,555.05
  4. Step 4: Simplify right side
    189,443.45x = 27,332,085,879.92
  5. Step 5: Solve for x
    x = 27,332,085,879.92/189,443.45
  6. Step 6: Final answer
    x = 144,275.70

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1.5x scale

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.