Home / 131,788.54-181,881.21-75,208.42

Finding the Fourth Proportional to 131,788.54, 181,881.21 and 75,208.42

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Solution

The fourth proportional to 131,788.54, 181,881.21 and 75,208.42 is: 103,795.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,788.54 : 181,881.21 = 75,208.42 : x
  2. Step 2: Convert to fraction form
    131,788.54/181,881.21 = 75,208.42/x
  3. Step 3: Cross multiply
    131,788.54x = 181,881.21 × 75,208.42
  4. Step 4: Simplify right side
    131,788.54x = 13,678,998,431.79
  5. Step 5: Solve for x
    x = 13,678,998,431.79/131,788.54
  6. Step 6: Final answer
    x = 103,795.05

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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.