Home / 317,768.45-476,669.09-81,113.18

Finding the Fourth Proportional to 317,768.45, 476,669.09 and 81,113.18

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Solution

The fourth proportional to 317,768.45, 476,669.09 and 81,113.18 is: 121,673.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,768.45 : 476,669.09 = 81,113.18 : x
  2. Step 2: Convert to fraction form
    317,768.45/476,669.09 = 81,113.18/x
  3. Step 3: Cross multiply
    317,768.45x = 476,669.09 × 81,113.18
  4. Step 4: Simplify right side
    317,768.45x = 38,664,145,742.05
  5. Step 5: Solve for x
    x = 38,664,145,742.05/317,768.45
  6. Step 6: Final answer
    x = 121,673.96

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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.