Home / 111,143.48-166,704.87-31,188.92

Finding the Fourth Proportional to 111,143.48, 166,704.87 and 31,188.92

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Solution

The fourth proportional to 111,143.48, 166,704.87 and 31,188.92 is: 46,780.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,143.48 : 166,704.87 = 31,188.92 : x
  2. Step 2: Convert to fraction form
    111,143.48/166,704.87 = 31,188.92/x
  3. Step 3: Cross multiply
    111,143.48x = 166,704.87 × 31,188.92
  4. Step 4: Simplify right side
    111,143.48x = 5,199,344,854.04
  5. Step 5: Solve for x
    x = 5,199,344,854.04/111,143.48
  6. Step 6: Final answer
    x = 46,780.48

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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.