Home / 111,016.40-166,038.60-99,255.20

Finding the Fourth Proportional to 111,016.40, 166,038.60 and 99,255.20

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Solution

The fourth proportional to 111,016.40, 166,038.60 and 99,255.20 is: 148,448.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,016.40 : 166,038.60 = 99,255.20 : x
  2. Step 2: Convert to fraction form
    111,016.40/166,038.60 = 99,255.20/x
  3. Step 3: Cross multiply
    111,016.40x = 166,038.60 × 99,255.20
  4. Step 4: Simplify right side
    111,016.40x = 16,480,194,450.72
  5. Step 5: Solve for x
    x = 16,480,194,450.72/111,016.40
  6. Step 6: Final answer
    x = 148,448.29

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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.