Home / 213,190.79-294,169.78-122,529.25

Finding the Fourth Proportional to 213,190.79, 294,169.78 and 122,529.25

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Solution

The fourth proportional to 213,190.79, 294,169.78 and 122,529.25 is: 169,071.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,190.79 : 294,169.78 = 122,529.25 : x
  2. Step 2: Convert to fraction form
    213,190.79/294,169.78 = 122,529.25/x
  3. Step 3: Cross multiply
    213,190.79x = 294,169.78 × 122,529.25
  4. Step 4: Simplify right side
    213,190.79x = 36,044,401,520.36
  5. Step 5: Solve for x
    x = 36,044,401,520.36/213,190.79
  6. Step 6: Final answer
    x = 169,071.10

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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.