Home / 213,971.60-320,957.40-131,027.60

Finding the Fourth Proportional to 213,971.60, 320,957.40 and 131,027.60

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Solution

The fourth proportional to 213,971.60, 320,957.40 and 131,027.60 is: 196,541.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,971.60 : 320,957.40 = 131,027.60 : x
  2. Step 2: Convert to fraction form
    213,971.60/320,957.40 = 131,027.60/x
  3. Step 3: Cross multiply
    213,971.60x = 320,957.40 × 131,027.60
  4. Step 4: Simplify right side
    213,971.60x = 42,054,277,824.24
  5. Step 5: Solve for x
    x = 42,054,277,824.24/213,971.60
  6. Step 6: Final answer
    x = 196,541.40

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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.