Home / 213,880.12-295,220.28-123,296.64

Finding the Fourth Proportional to 213,880.12, 295,220.28 and 123,296.64

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Solution

The fourth proportional to 213,880.12, 295,220.28 and 123,296.64 is: 170,187.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,880.12 : 295,220.28 = 123,296.64 : x
  2. Step 2: Convert to fraction form
    213,880.12/295,220.28 = 123,296.64/x
  3. Step 3: Cross multiply
    213,880.12x = 295,220.28 × 123,296.64
  4. Step 4: Simplify right side
    213,880.12x = 36,399,668,583.86
  5. Step 5: Solve for x
    x = 36,399,668,583.86/213,880.12
  6. Step 6: Final answer
    x = 170,187.25

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1.5x scale

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.