Home / 211,519.53-316,856.30-127,233.09

Finding the Fourth Proportional to 211,519.53, 316,856.30 and 127,233.09

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Solution

The fourth proportional to 211,519.53, 316,856.30 and 127,233.09 is: 190,595.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,519.53 : 316,856.30 = 127,233.09 : x
  2. Step 2: Convert to fraction form
    211,519.53/316,856.30 = 127,233.09/x
  3. Step 3: Cross multiply
    211,519.53x = 316,856.30 × 127,233.09
  4. Step 4: Simplify right side
    211,519.53x = 40,314,605,498.80
  5. Step 5: Solve for x
    x = 40,314,605,498.80/211,519.53
  6. Step 6: Final answer
    x = 190,595.19

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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.