Home / 201,212.10-301,630.50-67,999.20

Finding the Fourth Proportional to 201,212.10, 301,630.50 and 67,999.20

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Solution

The fourth proportional to 201,212.10, 301,630.50 and 67,999.20 is: 101,935.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,212.10 : 301,630.50 = 67,999.20 : x
  2. Step 2: Convert to fraction form
    201,212.10/301,630.50 = 67,999.20/x
  3. Step 3: Cross multiply
    201,212.10x = 301,630.50 × 67,999.20
  4. Step 4: Simplify right side
    201,212.10x = 20,510,632,695.60
  5. Step 5: Solve for x
    x = 20,510,632,695.60/201,212.10
  6. Step 6: Final answer
    x = 101,935.38

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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.