Home / 210,383.85-315,578.57-70,142.52

Finding the Fourth Proportional to 210,383.85, 315,578.57 and 70,142.52

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Solution

The fourth proportional to 210,383.85, 315,578.57 and 70,142.52 is: 105,214.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,383.85 : 315,578.57 = 70,142.52 : x
  2. Step 2: Convert to fraction form
    210,383.85/315,578.57 = 70,142.52/x
  3. Step 3: Cross multiply
    210,383.85x = 315,578.57 × 70,142.52
  4. Step 4: Simplify right side
    210,383.85x = 22,135,476,157.80
  5. Step 5: Solve for x
    x = 22,135,476,157.80/210,383.85
  6. Step 6: Final answer
    x = 105,214.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.