Home / 111,965.15-154,512.05-60,977.97

Finding the Fourth Proportional to 111,965.15, 154,512.05 and 60,977.97

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Solution

The fourth proportional to 111,965.15, 154,512.05 and 60,977.97 is: 84,149.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,965.15 : 154,512.05 = 60,977.97 : x
  2. Step 2: Convert to fraction form
    111,965.15/154,512.05 = 60,977.97/x
  3. Step 3: Cross multiply
    111,965.15x = 154,512.05 × 60,977.97
  4. Step 4: Simplify right side
    111,965.15x = 9,421,830,844.65
  5. Step 5: Solve for x
    x = 9,421,830,844.65/111,965.15
  6. Step 6: Final answer
    x = 84,149.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.