Home / 212,074.46-317,991.59-69,881.18

Finding the Fourth Proportional to 212,074.46, 317,991.59 and 69,881.18

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Solution

The fourth proportional to 212,074.46, 317,991.59 and 69,881.18 is: 104,782.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,074.46 : 317,991.59 = 69,881.18 : x
  2. Step 2: Convert to fraction form
    212,074.46/317,991.59 = 69,881.18/x
  3. Step 3: Cross multiply
    212,074.46x = 317,991.59 × 69,881.18
  4. Step 4: Simplify right side
    212,074.46x = 22,221,625,599.91
  5. Step 5: Solve for x
    x = 22,221,625,599.91/212,074.46
  6. Step 6: Final answer
    x = 104,782.19

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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.