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Finding the Fourth Proportional to 101,107.80, 151,661.70 and 99,795.60

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Solution

The fourth proportional to 101,107.80, 151,661.70 and 99,795.60 is: 149,693.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,107.80 : 151,661.70 = 99,795.60 : x
  2. Step 2: Convert to fraction form
    101,107.80/151,661.70 = 99,795.60/x
  3. Step 3: Cross multiply
    101,107.80x = 151,661.70 × 99,795.60
  4. Step 4: Simplify right side
    101,107.80x = 15,135,170,348.52
  5. Step 5: Solve for x
    x = 15,135,170,348.52/101,107.80
  6. Step 6: Final answer
    x = 149,693.40

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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.