Home / 112,123.16-154,767.46-66,815.36

Finding the Fourth Proportional to 112,123.16, 154,767.46 and 66,815.36

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Solution

The fourth proportional to 112,123.16, 154,767.46 and 66,815.36 is: 92,227.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,123.16 : 154,767.46 = 66,815.36 : x
  2. Step 2: Convert to fraction form
    112,123.16/154,767.46 = 66,815.36/x
  3. Step 3: Cross multiply
    112,123.16x = 154,767.46 × 66,815.36
  4. Step 4: Simplify right side
    112,123.16x = 10,340,842,615.31
  5. Step 5: Solve for x
    x = 10,340,842,615.31/112,123.16
  6. Step 6: Final answer
    x = 92,227.53

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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.