Home / 155,539.20-233,308.80-66,777.60

Finding the Fourth Proportional to 155,539.20, 233,308.80 and 66,777.60

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Solution

The fourth proportional to 155,539.20, 233,308.80 and 66,777.60 is: 100,166.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,539.20 : 233,308.80 = 66,777.60 : x
  2. Step 2: Convert to fraction form
    155,539.20/233,308.80 = 66,777.60/x
  3. Step 3: Cross multiply
    155,539.20x = 233,308.80 × 66,777.60
  4. Step 4: Simplify right side
    155,539.20x = 15,579,801,722.88
  5. Step 5: Solve for x
    x = 15,579,801,722.88/155,539.20
  6. Step 6: Final answer
    x = 100,166.40

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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.