Home / 211,749.60-317,575.89-126,384.54

Finding the Fourth Proportional to 211,749.60, 317,575.89 and 126,384.54

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Solution

The fourth proportional to 211,749.60, 317,575.89 and 126,384.54 is: 189,547.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,749.60 : 317,575.89 = 126,384.54 : x
  2. Step 2: Convert to fraction form
    211,749.60/317,575.89 = 126,384.54/x
  3. Step 3: Cross multiply
    211,749.60x = 317,575.89 × 126,384.54
  4. Step 4: Simplify right side
    211,749.60x = 40,136,682,772.74
  5. Step 5: Solve for x
    x = 40,136,682,772.74/211,749.60
  6. Step 6: Final answer
    x = 189,547.86

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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.