Home / 104,250.24-143,772.39-81,285.66

Finding the Fourth Proportional to 104,250.24, 143,772.39 and 81,285.66

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Solution

The fourth proportional to 104,250.24, 143,772.39 and 81,285.66 is: 112,101.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,250.24 : 143,772.39 = 81,285.66 : x
  2. Step 2: Convert to fraction form
    104,250.24/143,772.39 = 81,285.66/x
  3. Step 3: Cross multiply
    104,250.24x = 143,772.39 × 81,285.66
  4. Step 4: Simplify right side
    104,250.24x = 11,686,633,610.93
  5. Step 5: Solve for x
    x = 11,686,633,610.93/104,250.24
  6. Step 6: Final answer
    x = 112,101.74

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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.