Home / 196,000.40-294,000.60-129,645.20

Finding the Fourth Proportional to 196,000.40, 294,000.60 and 129,645.20

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Solution

The fourth proportional to 196,000.40, 294,000.60 and 129,645.20 is: 194,467.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,000.40 : 294,000.60 = 129,645.20 : x
  2. Step 2: Convert to fraction form
    196,000.40/294,000.60 = 129,645.20/x
  3. Step 3: Cross multiply
    196,000.40x = 294,000.60 × 129,645.20
  4. Step 4: Simplify right side
    196,000.40x = 38,115,766,587.12
  5. Step 5: Solve for x
    x = 38,115,766,587.12/196,000.40
  6. Step 6: Final answer
    x = 194,467.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.