Home / 154,047.48-212,591.16-85,137.54

Finding the Fourth Proportional to 154,047.48, 212,591.16 and 85,137.54

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Solution

The fourth proportional to 154,047.48, 212,591.16 and 85,137.54 is: 117,492.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,047.48 : 212,591.16 = 85,137.54 : x
  2. Step 2: Convert to fraction form
    154,047.48/212,591.16 = 85,137.54/x
  3. Step 3: Cross multiply
    154,047.48x = 212,591.16 × 85,137.54
  4. Step 4: Simplify right side
    154,047.48x = 18,099,488,388.15
  5. Step 5: Solve for x
    x = 18,099,488,388.15/154,047.48
  6. Step 6: Final answer
    x = 117,492.92

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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.