Home / 131,617.51-181,631.97-74,256.75

Finding the Fourth Proportional to 131,617.51, 181,631.97 and 74,256.75

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Solution

The fourth proportional to 131,617.51, 181,631.97 and 74,256.75 is: 102,474.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,617.51 : 181,631.97 = 74,256.75 : x
  2. Step 2: Convert to fraction form
    131,617.51/181,631.97 = 74,256.75/x
  3. Step 3: Cross multiply
    131,617.51x = 181,631.97 × 74,256.75
  4. Step 4: Simplify right side
    131,617.51x = 13,487,399,788.30
  5. Step 5: Solve for x
    x = 13,487,399,788.30/131,617.51
  6. Step 6: Final answer
    x = 102,474.21

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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.