Home / 111,320.74-166,704.14-77,884.26

Finding the Fourth Proportional to 111,320.74, 166,704.14 and 77,884.26

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Solution

The fourth proportional to 111,320.74, 166,704.14 and 77,884.26 is: 116,632.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,320.74 : 166,704.14 = 77,884.26 : x
  2. Step 2: Convert to fraction form
    111,320.74/166,704.14 = 77,884.26/x
  3. Step 3: Cross multiply
    111,320.74x = 166,704.14 × 77,884.26
  4. Step 4: Simplify right side
    111,320.74x = 12,983,627,359.89
  5. Step 5: Solve for x
    x = 12,983,627,359.89/111,320.74
  6. Step 6: Final answer
    x = 116,632.60

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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.