Home / 209,823.60-314,735.40-131,026.80

Finding the Fourth Proportional to 209,823.60, 314,735.40 and 131,026.80

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Solution

The fourth proportional to 209,823.60, 314,735.40 and 131,026.80 is: 196,540.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,823.60 : 314,735.40 = 131,026.80 : x
  2. Step 2: Convert to fraction form
    209,823.60/314,735.40 = 131,026.80/x
  3. Step 3: Cross multiply
    209,823.60x = 314,735.40 × 131,026.80
  4. Step 4: Simplify right side
    209,823.60x = 41,238,772,308.72
  5. Step 5: Solve for x
    x = 41,238,772,308.72/209,823.60
  6. Step 6: Final answer
    x = 196,540.20

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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.