Home / 212,228.53-317,810.43-126,786.69

Finding the Fourth Proportional to 212,228.53, 317,810.43 and 126,786.69

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Solution

The fourth proportional to 212,228.53, 317,810.43 and 126,786.69 is: 189,862.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,228.53 : 317,810.43 = 126,786.69 : x
  2. Step 2: Convert to fraction form
    212,228.53/317,810.43 = 126,786.69/x
  3. Step 3: Cross multiply
    212,228.53x = 317,810.43 × 126,786.69
  4. Step 4: Simplify right side
    212,228.53x = 40,294,132,467.18
  5. Step 5: Solve for x
    x = 40,294,132,467.18/212,228.53
  6. Step 6: Final answer
    x = 189,862.00

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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.