Home / 131,438.94-181,386.89-74,067.27

Finding the Fourth Proportional to 131,438.94, 181,386.89 and 74,067.27

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Solution

The fourth proportional to 131,438.94, 181,386.89 and 74,067.27 is: 102,213.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,438.94 : 181,386.89 = 74,067.27 : x
  2. Step 2: Convert to fraction form
    131,438.94/181,386.89 = 74,067.27/x
  3. Step 3: Cross multiply
    131,438.94x = 181,386.89 × 74,067.27
  4. Step 4: Simplify right side
    131,438.94x = 13,434,831,756.09
  5. Step 5: Solve for x
    x = 13,434,831,756.09/131,438.94
  6. Step 6: Final answer
    x = 102,213.48

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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.