Home / 253,519.43-380,156.10-127,105.35

Finding the Fourth Proportional to 253,519.43, 380,156.10 and 127,105.35

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Solution

The fourth proportional to 253,519.43, 380,156.10 and 127,105.35 is: 190,596.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,519.43 : 380,156.10 = 127,105.35 : x
  2. Step 2: Convert to fraction form
    253,519.43/380,156.10 = 127,105.35/x
  3. Step 3: Cross multiply
    253,519.43x = 380,156.10 × 127,105.35
  4. Step 4: Simplify right side
    253,519.43x = 48,319,874,145.14
  5. Step 5: Solve for x
    x = 48,319,874,145.14/253,519.43
  6. Step 6: Final answer
    x = 190,596.34

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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.