Home / 109,743.12-164,620.80-30,851.20

Finding the Fourth Proportional to 109,743.12, 164,620.80 and 30,851.20

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Solution

The fourth proportional to 109,743.12, 164,620.80 and 30,851.20 is: 46,278.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,743.12 : 164,620.80 = 30,851.20 : x
  2. Step 2: Convert to fraction form
    109,743.12/164,620.80 = 30,851.20/x
  3. Step 3: Cross multiply
    109,743.12x = 164,620.80 × 30,851.20
  4. Step 4: Simplify right side
    109,743.12x = 5,078,749,224.96
  5. Step 5: Solve for x
    x = 5,078,749,224.96/109,743.12
  6. Step 6: Final answer
    x = 46,278.52

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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.