Home / 111,081.60-166,525.20-99,271.80

Finding the Fourth Proportional to 111,081.60, 166,525.20 and 99,271.80

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Solution

The fourth proportional to 111,081.60, 166,525.20 and 99,271.80 is: 148,820.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,081.60 : 166,525.20 = 99,271.80 : x
  2. Step 2: Convert to fraction form
    111,081.60/166,525.20 = 99,271.80/x
  3. Step 3: Cross multiply
    111,081.60x = 166,525.20 × 99,271.80
  4. Step 4: Simplify right side
    111,081.60x = 16,531,256,349.36
  5. Step 5: Solve for x
    x = 16,531,256,349.36/111,081.60
  6. Step 6: Final answer
    x = 148,820.83

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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.