Home / 154,102.96-212,643.67-85,183.11

Finding the Fourth Proportional to 154,102.96, 212,643.67 and 85,183.11

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Solution

The fourth proportional to 154,102.96, 212,643.67 and 85,183.11 is: 117,542.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,102.96 : 212,643.67 = 85,183.11 : x
  2. Step 2: Convert to fraction form
    154,102.96/212,643.67 = 85,183.11/x
  3. Step 3: Cross multiply
    154,102.96x = 212,643.67 × 85,183.11
  4. Step 4: Simplify right side
    154,102.96x = 18,113,649,238.11
  5. Step 5: Solve for x
    x = 18,113,649,238.11/154,102.96
  6. Step 6: Final answer
    x = 117,542.52

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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.