Home / 170,645.19-256,022.53-81,904.94

Finding the Fourth Proportional to 170,645.19, 256,022.53 and 81,904.94

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Solution

The fourth proportional to 170,645.19, 256,022.53 and 81,904.94 is: 122,883.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,645.19 : 256,022.53 = 81,904.94 : x
  2. Step 2: Convert to fraction form
    170,645.19/256,022.53 = 81,904.94/x
  3. Step 3: Cross multiply
    170,645.19x = 256,022.53 × 81,904.94
  4. Step 4: Simplify right side
    170,645.19x = 20,969,508,473.42
  5. Step 5: Solve for x
    x = 20,969,508,473.42/170,645.19
  6. Step 6: Final answer
    x = 122,883.68

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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.