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Finding the Fourth Proportional to 115,630.40, 173,445.60 and 108,194.60

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Solution

The fourth proportional to 115,630.40, 173,445.60 and 108,194.60 is: 162,291.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,630.40 : 173,445.60 = 108,194.60 : x
  2. Step 2: Convert to fraction form
    115,630.40/173,445.60 = 108,194.60/x
  3. Step 3: Cross multiply
    115,630.40x = 173,445.60 × 108,194.60
  4. Step 4: Simplify right side
    115,630.40x = 18,765,877,313.76
  5. Step 5: Solve for x
    x = 18,765,877,313.76/115,630.40
  6. Step 6: Final answer
    x = 162,291.90

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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.