Home / 111,948.60-167,922.90-76,519.20

Finding the Fourth Proportional to 111,948.60, 167,922.90 and 76,519.20

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Solution

The fourth proportional to 111,948.60, 167,922.90 and 76,519.20 is: 114,778.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,948.60 : 167,922.90 = 76,519.20 : x
  2. Step 2: Convert to fraction form
    111,948.60/167,922.90 = 76,519.20/x
  3. Step 3: Cross multiply
    111,948.60x = 167,922.90 × 76,519.20
  4. Step 4: Simplify right side
    111,948.60x = 12,849,325,969.68
  5. Step 5: Solve for x
    x = 12,849,325,969.68/111,948.60
  6. Step 6: Final answer
    x = 114,778.80

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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.