Home / 111,124.20-166,686.30-71,466.60

Finding the Fourth Proportional to 111,124.20, 166,686.30 and 71,466.60

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Solution

The fourth proportional to 111,124.20, 166,686.30 and 71,466.60 is: 107,199.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,124.20 : 166,686.30 = 71,466.60 : x
  2. Step 2: Convert to fraction form
    111,124.20/166,686.30 = 71,466.60/x
  3. Step 3: Cross multiply
    111,124.20x = 166,686.30 × 71,466.60
  4. Step 4: Simplify right side
    111,124.20x = 11,912,503,127.58
  5. Step 5: Solve for x
    x = 11,912,503,127.58/111,124.20
  6. Step 6: Final answer
    x = 107,199.90

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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.