Home / 250,084.12-345,143.82-142,680.64

Finding the Fourth Proportional to 250,084.12, 345,143.82 and 142,680.64

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Solution

The fourth proportional to 250,084.12, 345,143.82 and 142,680.64 is: 196,915.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,084.12 : 345,143.82 = 142,680.64 : x
  2. Step 2: Convert to fraction form
    250,084.12/345,143.82 = 142,680.64/x
  3. Step 3: Cross multiply
    250,084.12x = 345,143.82 × 142,680.64
  4. Step 4: Simplify right side
    250,084.12x = 49,245,341,129.64
  5. Step 5: Solve for x
    x = 49,245,341,129.64/250,084.12
  6. Step 6: Final answer
    x = 196,915.11

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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.