Home / 112,123.14-154,767.43-66,815.33

Finding the Fourth Proportional to 112,123.14, 154,767.43 and 66,815.33

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Solution

The fourth proportional to 112,123.14, 154,767.43 and 66,815.33 is: 92,227.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,123.14 : 154,767.43 = 66,815.33 : x
  2. Step 2: Convert to fraction form
    112,123.14/154,767.43 = 66,815.33/x
  3. Step 3: Cross multiply
    112,123.14x = 154,767.43 × 66,815.33
  4. Step 4: Simplify right side
    112,123.14x = 10,340,836,713.11
  5. Step 5: Solve for x
    x = 10,340,836,713.11/112,123.14
  6. Step 6: Final answer
    x = 92,227.50

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1.5x scale

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.