Home / 111,749.85-154,214.79-61,448.85

Finding the Fourth Proportional to 111,749.85, 154,214.79 and 61,448.85

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Solution

The fourth proportional to 111,749.85, 154,214.79 and 61,448.85 is: 84,799.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,749.85 : 154,214.79 = 61,448.85 : x
  2. Step 2: Convert to fraction form
    111,749.85/154,214.79 = 61,448.85/x
  3. Step 3: Cross multiply
    111,749.85x = 154,214.79 × 61,448.85
  4. Step 4: Simplify right side
    111,749.85x = 9,476,321,498.49
  5. Step 5: Solve for x
    x = 9,476,321,498.49/111,749.85
  6. Step 6: Final answer
    x = 84,799.41

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1.5x scale

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.