Home / 131,505.59-181,474.09-74,144.42

Finding the Fourth Proportional to 131,505.59, 181,474.09 and 74,144.42

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Solution

The fourth proportional to 131,505.59, 181,474.09 and 74,144.42 is: 102,317.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,505.59 : 181,474.09 = 74,144.42 : x
  2. Step 2: Convert to fraction form
    131,505.59/181,474.09 = 74,144.42/x
  3. Step 3: Cross multiply
    131,505.59x = 181,474.09 × 74,144.42
  4. Step 4: Simplify right side
    131,505.59x = 13,455,291,416.40
  5. Step 5: Solve for x
    x = 13,455,291,416.40/131,505.59
  6. Step 6: Final answer
    x = 102,317.26

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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.