Home / 213,705.11-294,929.04-121,826.58

Finding the Fourth Proportional to 213,705.11, 294,929.04 and 121,826.58

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Solution

The fourth proportional to 213,705.11, 294,929.04 and 121,826.58 is: 168,129.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,705.11 : 294,929.04 = 121,826.58 : x
  2. Step 2: Convert to fraction form
    213,705.11/294,929.04 = 121,826.58/x
  3. Step 3: Cross multiply
    213,705.11x = 294,929.04 × 121,826.58
  4. Step 4: Simplify right side
    213,705.11x = 35,930,196,285.88
  5. Step 5: Solve for x
    x = 35,930,196,285.88/213,705.11
  6. Step 6: Final answer
    x = 168,129.80

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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.