Home / 112,739.22-169,028.73-56,538.78

Finding the Fourth Proportional to 112,739.22, 169,028.73 and 56,538.78

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Solution

The fourth proportional to 112,739.22, 169,028.73 and 56,538.78 is: 84,768.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,739.22 : 169,028.73 = 56,538.78 : x
  2. Step 2: Convert to fraction form
    112,739.22/169,028.73 = 56,538.78/x
  3. Step 3: Cross multiply
    112,739.22x = 169,028.73 × 56,538.78
  4. Step 4: Simplify right side
    112,739.22x = 9,556,678,179.15
  5. Step 5: Solve for x
    x = 9,556,678,179.15/112,739.22
  6. Step 6: Final answer
    x = 84,768.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.