Home / 112,611.80-154,576.42-99,579.41

Finding the Fourth Proportional to 112,611.80, 154,576.42 and 99,579.41

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Solution

The fourth proportional to 112,611.80, 154,576.42 and 99,579.41 is: 136,687.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,611.80 : 154,576.42 = 99,579.41 : x
  2. Step 2: Convert to fraction form
    112,611.80/154,576.42 = 99,579.41/x
  3. Step 3: Cross multiply
    112,611.80x = 154,576.42 × 99,579.41
  4. Step 4: Simplify right side
    112,611.80x = 15,392,628,703.51
  5. Step 5: Solve for x
    x = 15,392,628,703.51/112,611.80
  6. Step 6: Final answer
    x = 136,687.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.