Home / 154,112.12-212,616.11-113,922.35

Finding the Fourth Proportional to 154,112.12, 212,616.11 and 113,922.35

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Solution

The fourth proportional to 154,112.12, 212,616.11 and 113,922.35 is: 157,169.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,112.12 : 212,616.11 = 113,922.35 : x
  2. Step 2: Convert to fraction form
    154,112.12/212,616.11 = 113,922.35/x
  3. Step 3: Cross multiply
    154,112.12x = 212,616.11 × 113,922.35
  4. Step 4: Simplify right side
    154,112.12x = 24,221,725,266.37
  5. Step 5: Solve for x
    x = 24,221,725,266.37/154,112.12
  6. Step 6: Final answer
    x = 157,169.51

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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.