Home / 131,536.31-181,477.06-80,495.81

Finding the Fourth Proportional to 131,536.31, 181,477.06 and 80,495.81

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Solution

The fourth proportional to 131,536.31, 181,477.06 and 80,495.81 is: 111,057.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,536.31 : 181,477.06 = 80,495.81 : x
  2. Step 2: Convert to fraction form
    131,536.31/181,477.06 = 80,495.81/x
  3. Step 3: Cross multiply
    131,536.31x = 181,477.06 × 80,495.81
  4. Step 4: Simplify right side
    131,536.31x = 14,608,142,513.03
  5. Step 5: Solve for x
    x = 14,608,142,513.03/131,536.31
  6. Step 6: Final answer
    x = 111,057.87

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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.