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Finding the Fourth Proportional to 115,751.60, 173,627.40 and 80,730.80

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Solution

The fourth proportional to 115,751.60, 173,627.40 and 80,730.80 is: 121,096.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,751.60 : 173,627.40 = 80,730.80 : x
  2. Step 2: Convert to fraction form
    115,751.60/173,627.40 = 80,730.80/x
  3. Step 3: Cross multiply
    115,751.60x = 173,627.40 × 80,730.80
  4. Step 4: Simplify right side
    115,751.60x = 14,017,078,903.92
  5. Step 5: Solve for x
    x = 14,017,078,903.92/115,751.60
  6. Step 6: Final answer
    x = 121,096.20

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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.