Home / 131,357.03-181,274.63-76,896.68

Finding the Fourth Proportional to 131,357.03, 181,274.63 and 76,896.68

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Solution

The fourth proportional to 131,357.03, 181,274.63 and 76,896.68 is: 106,118.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,357.03 : 181,274.63 = 76,896.68 : x
  2. Step 2: Convert to fraction form
    131,357.03/181,274.63 = 76,896.68/x
  3. Step 3: Cross multiply
    131,357.03x = 181,274.63 × 76,896.68
  4. Step 4: Simplify right side
    131,357.03x = 13,939,415,924.37
  5. Step 5: Solve for x
    x = 13,939,415,924.37/131,357.03
  6. Step 6: Final answer
    x = 106,118.54

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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.