Home / 213,120.06-294,115.23-122,505.18

Finding the Fourth Proportional to 213,120.06, 294,115.23 and 122,505.18

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Solution

The fourth proportional to 213,120.06, 294,115.23 and 122,505.18 is: 169,062.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,120.06 : 294,115.23 = 122,505.18 : x
  2. Step 2: Convert to fraction form
    213,120.06/294,115.23 = 122,505.18/x
  3. Step 3: Cross multiply
    213,120.06x = 294,115.23 × 122,505.18
  4. Step 4: Simplify right side
    213,120.06x = 36,030,639,191.89
  5. Step 5: Solve for x
    x = 36,030,639,191.89/213,120.06
  6. Step 6: Final answer
    x = 169,062.64

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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.