Home / 103,629.56-143,008.08-58,917.56

Finding the Fourth Proportional to 103,629.56, 143,008.08 and 58,917.56

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Solution

The fourth proportional to 103,629.56, 143,008.08 and 58,917.56 is: 81,305.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,629.56 : 143,008.08 = 58,917.56 : x
  2. Step 2: Convert to fraction form
    103,629.56/143,008.08 = 58,917.56/x
  3. Step 3: Cross multiply
    103,629.56x = 143,008.08 × 58,917.56
  4. Step 4: Simplify right side
    103,629.56x = 8,425,687,133.88
  5. Step 5: Solve for x
    x = 8,425,687,133.88/103,629.56
  6. Step 6: Final answer
    x = 81,305.83

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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.