Home / 120,841.74-166,694.41-112,288.89

Finding the Fourth Proportional to 120,841.74, 166,694.41 and 112,288.89

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Solution

The fourth proportional to 120,841.74, 166,694.41 and 112,288.89 is: 154,896.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,841.74 : 166,694.41 = 112,288.89 : x
  2. Step 2: Convert to fraction form
    120,841.74/166,694.41 = 112,288.89/x
  3. Step 3: Cross multiply
    120,841.74x = 166,694.41 × 112,288.89
  4. Step 4: Simplify right side
    120,841.74x = 18,717,930,268.10
  5. Step 5: Solve for x
    x = 18,717,930,268.10/120,841.74
  6. Step 6: Final answer
    x = 154,896.23

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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.