Home / 104,028.22-143,705.91-82,780.30

Finding the Fourth Proportional to 104,028.22, 143,705.91 and 82,780.30

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Solution

The fourth proportional to 104,028.22, 143,705.91 and 82,780.30 is: 114,353.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,028.22 : 143,705.91 = 82,780.30 : x
  2. Step 2: Convert to fraction form
    104,028.22/143,705.91 = 82,780.30/x
  3. Step 3: Cross multiply
    104,028.22x = 143,705.91 × 82,780.30
  4. Step 4: Simplify right side
    104,028.22x = 11,896,018,341.57
  5. Step 5: Solve for x
    x = 11,896,018,341.57/104,028.22
  6. Step 6: Final answer
    x = 114,353.76

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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.