Home / 105,216.16-145,198.08-57,469.44

Finding the Fourth Proportional to 105,216.16, 145,198.08 and 57,469.44

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Solution

The fourth proportional to 105,216.16, 145,198.08 and 57,469.44 is: 79,307.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,216.16 : 145,198.08 = 57,469.44 : x
  2. Step 2: Convert to fraction form
    105,216.16/145,198.08 = 57,469.44/x
  3. Step 3: Cross multiply
    105,216.16x = 145,198.08 × 57,469.44
  4. Step 4: Simplify right side
    105,216.16x = 8,344,452,346.68
  5. Step 5: Solve for x
    x = 8,344,452,346.68/105,216.16
  6. Step 6: Final answer
    x = 79,307.71

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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.