Home / 109,635.20-164,452.80-30,762.80

Finding the Fourth Proportional to 109,635.20, 164,452.80 and 30,762.80

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Solution

The fourth proportional to 109,635.20, 164,452.80 and 30,762.80 is: 46,144.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,635.20 : 164,452.80 = 30,762.80 : x
  2. Step 2: Convert to fraction form
    109,635.20/164,452.80 = 30,762.80/x
  3. Step 3: Cross multiply
    109,635.20x = 164,452.80 × 30,762.80
  4. Step 4: Simplify right side
    109,635.20x = 5,059,028,595.84
  5. Step 5: Solve for x
    x = 5,059,028,595.84/109,635.20
  6. Step 6: Final answer
    x = 46,144.20

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1.5x scale

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.