Home / 211,586.84-317,381.34-71,346.68

Finding the Fourth Proportional to 211,586.84, 317,381.34 and 71,346.68

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Solution

The fourth proportional to 211,586.84, 317,381.34 and 71,346.68 is: 107,020.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,586.84 : 317,381.34 = 71,346.68 : x
  2. Step 2: Convert to fraction form
    211,586.84/317,381.34 = 71,346.68/x
  3. Step 3: Cross multiply
    211,586.84x = 317,381.34 × 71,346.68
  4. Step 4: Simplify right side
    211,586.84x = 22,644,104,902.95
  5. Step 5: Solve for x
    x = 22,644,104,902.95/211,586.84
  6. Step 6: Final answer
    x = 107,020.38

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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.