Home / 218,823.12-301,977.23-122,033.09

Finding the Fourth Proportional to 218,823.12, 301,977.23 and 122,033.09

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Solution

The fourth proportional to 218,823.12, 301,977.23 and 122,033.09 is: 168,406.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,823.12 : 301,977.23 = 122,033.09 : x
  2. Step 2: Convert to fraction form
    218,823.12/301,977.23 = 122,033.09/x
  3. Step 3: Cross multiply
    218,823.12x = 301,977.23 × 122,033.09
  4. Step 4: Simplify right side
    218,823.12x = 36,851,214,631.32
  5. Step 5: Solve for x
    x = 36,851,214,631.32/218,823.12
  6. Step 6: Final answer
    x = 168,406.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.