Home / 131,228.64-181,111.76-82,900.96

Finding the Fourth Proportional to 131,228.64, 181,111.76 and 82,900.96

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Solution

The fourth proportional to 131,228.64, 181,111.76 and 82,900.96 is: 114,413.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,228.64 : 181,111.76 = 82,900.96 : x
  2. Step 2: Convert to fraction form
    131,228.64/181,111.76 = 82,900.96/x
  3. Step 3: Cross multiply
    131,228.64x = 181,111.76 × 82,900.96
  4. Step 4: Simplify right side
    131,228.64x = 15,014,338,771.29
  5. Step 5: Solve for x
    x = 15,014,338,771.29/131,228.64
  6. Step 6: Final answer
    x = 114,413.58

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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.