Home / 401,724.10-602,162.49-131,781.75

Finding the Fourth Proportional to 401,724.10, 602,162.49 and 131,781.75

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Solution

The fourth proportional to 401,724.10, 602,162.49 and 131,781.75 is: 197,533.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,724.10 : 602,162.49 = 131,781.75 : x
  2. Step 2: Convert to fraction form
    401,724.10/602,162.49 = 131,781.75/x
  3. Step 3: Cross multiply
    401,724.10x = 602,162.49 × 131,781.75
  4. Step 4: Simplify right side
    401,724.10x = 79,354,026,716.56
  5. Step 5: Solve for x
    x = 79,354,026,716.56/401,724.10
  6. Step 6: Final answer
    x = 197,533.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.