Home / 111,078.19-166,658.97-66,125.46

Finding the Fourth Proportional to 111,078.19, 166,658.97 and 66,125.46

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Solution

The fourth proportional to 111,078.19, 166,658.97 and 66,125.46 is: 99,213.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,078.19 : 166,658.97 = 66,125.46 : x
  2. Step 2: Convert to fraction form
    111,078.19/166,658.97 = 66,125.46/x
  3. Step 3: Cross multiply
    111,078.19x = 166,658.97 × 66,125.46
  4. Step 4: Simplify right side
    111,078.19x = 11,020,401,555.36
  5. Step 5: Solve for x
    x = 11,020,401,555.36/111,078.19
  6. Step 6: Final answer
    x = 99,213.01

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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.