Home / 105,739.26-145,922.22-57,992.64

Finding the Fourth Proportional to 105,739.26, 145,922.22 and 57,992.64

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Solution

The fourth proportional to 105,739.26, 145,922.22 and 57,992.64 is: 80,030.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,739.26 : 145,922.22 = 57,992.64 : x
  2. Step 2: Convert to fraction form
    105,739.26/145,922.22 = 57,992.64/x
  3. Step 3: Cross multiply
    105,739.26x = 145,922.22 × 57,992.64
  4. Step 4: Simplify right side
    105,739.26x = 8,462,414,772.46
  5. Step 5: Solve for x
    x = 8,462,414,772.46/105,739.26
  6. Step 6: Final answer
    x = 80,030.96

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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.