Home / 103,033.62-142,198.20-57,723.84

Finding the Fourth Proportional to 103,033.62, 142,198.20 and 57,723.84

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Solution

The fourth proportional to 103,033.62, 142,198.20 and 57,723.84 is: 79,665.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,033.62 : 142,198.20 = 57,723.84 : x
  2. Step 2: Convert to fraction form
    103,033.62/142,198.20 = 57,723.84/x
  3. Step 3: Cross multiply
    103,033.62x = 142,198.20 × 57,723.84
  4. Step 4: Simplify right side
    103,033.62x = 8,208,226,145.09
  5. Step 5: Solve for x
    x = 8,208,226,145.09/103,033.62
  6. Step 6: Final answer
    x = 79,665.51

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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.