Home / 213,132.63-294,132.83-122,517.93

Finding the Fourth Proportional to 213,132.63, 294,132.83 and 122,517.93

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Solution

The fourth proportional to 213,132.63, 294,132.83 and 122,517.93 is: 169,080.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,132.63 : 294,132.83 = 122,517.93 : x
  2. Step 2: Convert to fraction form
    213,132.63/294,132.83 = 122,517.93/x
  3. Step 3: Cross multiply
    213,132.63x = 294,132.83 × 122,517.93
  4. Step 4: Simplify right side
    213,132.63x = 36,036,544,864.05
  5. Step 5: Solve for x
    x = 36,036,544,864.05/213,132.63
  6. Step 6: Final answer
    x = 169,080.37

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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.