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Finding the Fourth Proportional to 110,478.80, 165,739.80 and 43,907.60

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Solution

The fourth proportional to 110,478.80, 165,739.80 and 43,907.60 is: 65,869.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,478.80 : 165,739.80 = 43,907.60 : x
  2. Step 2: Convert to fraction form
    110,478.80/165,739.80 = 43,907.60/x
  3. Step 3: Cross multiply
    110,478.80x = 165,739.80 × 43,907.60
  4. Step 4: Simplify right side
    110,478.80x = 7,277,236,842.48
  5. Step 5: Solve for x
    x = 7,277,236,842.48/110,478.80
  6. Step 6: Final answer
    x = 65,869.98

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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.