Home / 213,120.45-294,085.28-117,620.98

Finding the Fourth Proportional to 213,120.45, 294,085.28 and 117,620.98

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Solution

The fourth proportional to 213,120.45, 294,085.28 and 117,620.98 is: 162,305.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,120.45 : 294,085.28 = 117,620.98 : x
  2. Step 2: Convert to fraction form
    213,120.45/294,085.28 = 117,620.98/x
  3. Step 3: Cross multiply
    213,120.45x = 294,085.28 × 117,620.98
  4. Step 4: Simplify right side
    213,120.45x = 34,590,598,396.01
  5. Step 5: Solve for x
    x = 34,590,598,396.01/213,120.45
  6. Step 6: Final answer
    x = 162,305.39

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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.