Home / 185,840.64-279,313.92-87,413.76

Finding the Fourth Proportional to 185,840.64, 279,313.92 and 87,413.76

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Solution

The fourth proportional to 185,840.64, 279,313.92 and 87,413.76 is: 131,380.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,840.64 : 279,313.92 = 87,413.76 : x
  2. Step 2: Convert to fraction form
    185,840.64/279,313.92 = 87,413.76/x
  3. Step 3: Cross multiply
    185,840.64x = 279,313.92 × 87,413.76
  4. Step 4: Simplify right side
    185,840.64x = 24,415,879,967.54
  5. Step 5: Solve for x
    x = 24,415,879,967.54/185,840.64
  6. Step 6: Final answer
    x = 131,380.74

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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.