Home / 112,015.43-154,579.46-61,028.76

Finding the Fourth Proportional to 112,015.43, 154,579.46 and 61,028.76

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Solution

The fourth proportional to 112,015.43, 154,579.46 and 61,028.76 is: 84,218.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,015.43 : 154,579.46 = 61,028.76 : x
  2. Step 2: Convert to fraction form
    112,015.43/154,579.46 = 61,028.76/x
  3. Step 3: Cross multiply
    112,015.43x = 154,579.46 × 61,028.76
  4. Step 4: Simplify right side
    112,015.43x = 9,433,792,765.27
  5. Step 5: Solve for x
    x = 9,433,792,765.27/112,015.43
  6. Step 6: Final answer
    x = 84,218.69

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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.