Home / 189,000.30-283,500.45-135,856.20

Finding the Fourth Proportional to 189,000.30, 283,500.45 and 135,856.20

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Solution

The fourth proportional to 189,000.30, 283,500.45 and 135,856.20 is: 203,784.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,000.30 : 283,500.45 = 135,856.20 : x
  2. Step 2: Convert to fraction form
    189,000.30/283,500.45 = 135,856.20/x
  3. Step 3: Cross multiply
    189,000.30x = 283,500.45 × 135,856.20
  4. Step 4: Simplify right side
    189,000.30x = 38,515,293,835.29
  5. Step 5: Solve for x
    x = 38,515,293,835.29/189,000.30
  6. Step 6: Final answer
    x = 203,784.30

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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.