Home / 112,486.12-168,812.07-53,321.56

Finding the Fourth Proportional to 112,486.12, 168,812.07 and 53,321.56

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Solution

The fourth proportional to 112,486.12, 168,812.07 and 53,321.56 is: 80,021.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,486.12 : 168,812.07 = 53,321.56 : x
  2. Step 2: Convert to fraction form
    112,486.12/168,812.07 = 53,321.56/x
  3. Step 3: Cross multiply
    112,486.12x = 168,812.07 × 53,321.56
  4. Step 4: Simplify right side
    112,486.12x = 9,001,322,297.24
  5. Step 5: Solve for x
    x = 9,001,322,297.24/112,486.12
  6. Step 6: Final answer
    x = 80,021.63

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1.5x scale

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.