Home / 211,404.05-317,057.54-126,039.06

Finding the Fourth Proportional to 211,404.05, 317,057.54 and 126,039.06

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Solution

The fourth proportional to 211,404.05, 317,057.54 and 126,039.06 is: 189,029.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,404.05 : 317,057.54 = 126,039.06 : x
  2. Step 2: Convert to fraction form
    211,404.05/317,057.54 = 126,039.06/x
  3. Step 3: Cross multiply
    211,404.05x = 317,057.54 × 126,039.06
  4. Step 4: Simplify right side
    211,404.05x = 39,961,634,307.51
  5. Step 5: Solve for x
    x = 39,961,634,307.51/211,404.05
  6. Step 6: Final answer
    x = 189,029.65

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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.