Home / 112,126.24-154,735.44-61,138.56

Finding the Fourth Proportional to 112,126.24, 154,735.44 and 61,138.56

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Solution

The fourth proportional to 112,126.24, 154,735.44 and 61,138.56 is: 84,371.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,126.24 : 154,735.44 = 61,138.56 : x
  2. Step 2: Convert to fraction form
    112,126.24/154,735.44 = 61,138.56/x
  3. Step 3: Cross multiply
    112,126.24x = 154,735.44 × 61,138.56
  4. Step 4: Simplify right side
    112,126.24x = 9,460,301,982.57
  5. Step 5: Solve for x
    x = 9,460,301,982.57/112,126.24
  6. Step 6: Final answer
    x = 84,371.88

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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.