Home / 189,335.20-284,002.80-161,190.40

Finding the Fourth Proportional to 189,335.20, 284,002.80 and 161,190.40

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Solution

The fourth proportional to 189,335.20, 284,002.80 and 161,190.40 is: 241,785.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,335.20 : 284,002.80 = 161,190.40 : x
  2. Step 2: Convert to fraction form
    189,335.20/284,002.80 = 161,190.40/x
  3. Step 3: Cross multiply
    189,335.20x = 284,002.80 × 161,190.40
  4. Step 4: Simplify right side
    189,335.20x = 45,778,524,933.12
  5. Step 5: Solve for x
    x = 45,778,524,933.12/189,335.20
  6. Step 6: Final answer
    x = 241,785.60

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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.