Home / 111,111.75-166,667.63-28,005.75

Finding the Fourth Proportional to 111,111.75, 166,667.63 and 28,005.75

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Solution

The fourth proportional to 111,111.75, 166,667.63 and 28,005.75 is: 42,008.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,111.75 : 166,667.63 = 28,005.75 : x
  2. Step 2: Convert to fraction form
    111,111.75/166,667.63 = 28,005.75/x
  3. Step 3: Cross multiply
    111,111.75x = 166,667.63 × 28,005.75
  4. Step 4: Simplify right side
    111,111.75x = 4,667,651,978.87
  5. Step 5: Solve for x
    x = 4,667,651,978.87/111,111.75
  6. Step 6: Final answer
    x = 42,008.63

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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.