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Finding the Fourth Proportional to 114,080.40, 171,120.60 and 76,755.60

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Solution

The fourth proportional to 114,080.40, 171,120.60 and 76,755.60 is: 115,133.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,080.40 : 171,120.60 = 76,755.60 : x
  2. Step 2: Convert to fraction form
    114,080.40/171,120.60 = 76,755.60/x
  3. Step 3: Cross multiply
    114,080.40x = 171,120.60 × 76,755.60
  4. Step 4: Simplify right side
    114,080.40x = 13,134,464,325.36
  5. Step 5: Solve for x
    x = 13,134,464,325.36/114,080.40
  6. Step 6: Final answer
    x = 115,133.40

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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.