Home / 131,439.94-181,388.27-74,068.27

Finding the Fourth Proportional to 131,439.94, 181,388.27 and 74,068.27

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Solution

The fourth proportional to 131,439.94, 181,388.27 and 74,068.27 is: 102,214.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,439.94 : 181,388.27 = 74,068.27 : x
  2. Step 2: Convert to fraction form
    131,439.94/181,388.27 = 74,068.27/x
  3. Step 3: Cross multiply
    131,439.94x = 181,388.27 × 74,068.27
  4. Step 4: Simplify right side
    131,439.94x = 13,435,115,357.19
  5. Step 5: Solve for x
    x = 13,435,115,357.19/131,439.94
  6. Step 6: Final answer
    x = 102,214.86

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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.