Home / 156,659.70-234,989.55-103,515.60

Finding the Fourth Proportional to 156,659.70, 234,989.55 and 103,515.60

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Solution

The fourth proportional to 156,659.70, 234,989.55 and 103,515.60 is: 155,273.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,659.70 : 234,989.55 = 103,515.60 : x
  2. Step 2: Convert to fraction form
    156,659.70/234,989.55 = 103,515.60/x
  3. Step 3: Cross multiply
    156,659.70x = 234,989.55 × 103,515.60
  4. Step 4: Simplify right side
    156,659.70x = 24,325,084,261.98
  5. Step 5: Solve for x
    x = 24,325,084,261.98/156,659.70
  6. Step 6: Final answer
    x = 155,273.40

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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.