Home / 111,231.40-166,847.70-28,125.40

Finding the Fourth Proportional to 111,231.40, 166,847.70 and 28,125.40

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Solution

The fourth proportional to 111,231.40, 166,847.70 and 28,125.40 is: 42,188.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,231.40 : 166,847.70 = 28,125.40 : x
  2. Step 2: Convert to fraction form
    111,231.40/166,847.70 = 28,125.40/x
  3. Step 3: Cross multiply
    111,231.40x = 166,847.70 × 28,125.40
  4. Step 4: Simplify right side
    111,231.40x = 4,692,658,301.58
  5. Step 5: Solve for x
    x = 4,692,658,301.58/111,231.40
  6. Step 6: Final answer
    x = 42,188.25

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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.