Home / 156,319.20-234,133.20-120,981.60

Finding the Fourth Proportional to 156,319.20, 234,133.20 and 120,981.60

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Solution

The fourth proportional to 156,319.20, 234,133.20 and 120,981.60 is: 181,204.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,319.20 : 234,133.20 = 120,981.60 : x
  2. Step 2: Convert to fraction form
    156,319.20/234,133.20 = 120,981.60/x
  3. Step 3: Cross multiply
    156,319.20x = 234,133.20 × 120,981.60
  4. Step 4: Simplify right side
    156,319.20x = 28,325,809,149.12
  5. Step 5: Solve for x
    x = 28,325,809,149.12/156,319.20
  6. Step 6: Final answer
    x = 181,204.93

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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.