Home / 103,629.82-142,998.94-58,306.80

Finding the Fourth Proportional to 103,629.82, 142,998.94 and 58,306.80

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Solution

The fourth proportional to 103,629.82, 142,998.94 and 58,306.80 is: 80,457.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,629.82 : 142,998.94 = 58,306.80 : x
  2. Step 2: Convert to fraction form
    103,629.82/142,998.94 = 58,306.80/x
  3. Step 3: Cross multiply
    103,629.82x = 142,998.94 × 58,306.80
  4. Step 4: Simplify right side
    103,629.82x = 8,337,810,594.79
  5. Step 5: Solve for x
    x = 8,337,810,594.79/103,629.82
  6. Step 6: Final answer
    x = 80,457.64

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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.