Home / 224,598.75-309,911.04-129,087.60

Finding the Fourth Proportional to 224,598.75, 309,911.04 and 129,087.60

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Solution

The fourth proportional to 224,598.75, 309,911.04 and 129,087.60 is: 178,120.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,598.75 : 309,911.04 = 129,087.60 : x
  2. Step 2: Convert to fraction form
    224,598.75/309,911.04 = 129,087.60/x
  3. Step 3: Cross multiply
    224,598.75x = 309,911.04 × 129,087.60
  4. Step 4: Simplify right side
    224,598.75x = 40,005,672,367.10
  5. Step 5: Solve for x
    x = 40,005,672,367.10/224,598.75
  6. Step 6: Final answer
    x = 178,120.64

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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.