Home / 123,106.06-170,026.41-82,749.73

Finding the Fourth Proportional to 123,106.06, 170,026.41 and 82,749.73

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Solution

The fourth proportional to 123,106.06, 170,026.41 and 82,749.73 is: 114,288.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,106.06 : 170,026.41 = 82,749.73 : x
  2. Step 2: Convert to fraction form
    123,106.06/170,026.41 = 82,749.73/x
  3. Step 3: Cross multiply
    123,106.06x = 170,026.41 × 82,749.73
  4. Step 4: Simplify right side
    123,106.06x = 14,069,639,106.62
  5. Step 5: Solve for x
    x = 14,069,639,106.62/123,106.06
  6. Step 6: Final answer
    x = 114,288.77

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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.