Home / 213,311.12-294,407.12-122,660.04

Finding the Fourth Proportional to 213,311.12, 294,407.12 and 122,660.04

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Solution

The fourth proportional to 213,311.12, 294,407.12 and 122,660.04 is: 169,292.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,311.12 : 294,407.12 = 122,660.04 : x
  2. Step 2: Convert to fraction form
    213,311.12/294,407.12 = 122,660.04/x
  3. Step 3: Cross multiply
    213,311.12x = 294,407.12 × 122,660.04
  4. Step 4: Simplify right side
    213,311.12x = 36,111,989,115.48
  5. Step 5: Solve for x
    x = 36,111,989,115.48/213,311.12
  6. Step 6: Final answer
    x = 169,292.58

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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.