Home / 131,880.67-181,995.36-71,451.73

Finding the Fourth Proportional to 131,880.67, 181,995.36 and 71,451.73

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Solution

The fourth proportional to 131,880.67, 181,995.36 and 71,451.73 is: 98,603.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,880.67 : 181,995.36 = 71,451.73 : x
  2. Step 2: Convert to fraction form
    131,880.67/181,995.36 = 71,451.73/x
  3. Step 3: Cross multiply
    131,880.67x = 181,995.36 × 71,451.73
  4. Step 4: Simplify right side
    131,880.67x = 13,003,883,323.97
  5. Step 5: Solve for x
    x = 13,003,883,323.97/131,880.67
  6. Step 6: Final answer
    x = 98,603.41

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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.