Home / 112,610.80-154,575.05-99,578.41

Finding the Fourth Proportional to 112,610.80, 154,575.05 and 99,578.41

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Solution

The fourth proportional to 112,610.80, 154,575.05 and 99,578.41 is: 136,686.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,610.80 : 154,575.05 = 99,578.41 : x
  2. Step 2: Convert to fraction form
    112,610.80/154,575.05 = 99,578.41/x
  3. Step 3: Cross multiply
    112,610.80x = 154,575.05 × 99,578.41
  4. Step 4: Simplify right side
    112,610.80x = 15,392,337,704.67
  5. Step 5: Solve for x
    x = 15,392,337,704.67/112,610.80
  6. Step 6: Final answer
    x = 136,686.16

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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.