Home / 131,845.05-181,943.87-71,415.27

Finding the Fourth Proportional to 131,845.05, 181,943.87 and 71,415.27

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Solution

The fourth proportional to 131,845.05, 181,943.87 and 71,415.27 is: 98,551.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,845.05 : 181,943.87 = 71,415.27 : x
  2. Step 2: Convert to fraction form
    131,845.05/181,943.87 = 71,415.27/x
  3. Step 3: Cross multiply
    131,845.05x = 181,943.87 × 71,415.27
  4. Step 4: Simplify right side
    131,845.05x = 12,993,570,243.82
  5. Step 5: Solve for x
    x = 12,993,570,243.82/131,845.05
  6. Step 6: Final answer
    x = 98,551.82

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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.