Home / 189,736.40-284,518.20-84,501.20

Finding the Fourth Proportional to 189,736.40, 284,518.20 and 84,501.20

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Solution

The fourth proportional to 189,736.40, 284,518.20 and 84,501.20 is: 126,713.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,736.40 : 284,518.20 = 84,501.20 : x
  2. Step 2: Convert to fraction form
    189,736.40/284,518.20 = 84,501.20/x
  3. Step 3: Cross multiply
    189,736.40x = 284,518.20 × 84,501.20
  4. Step 4: Simplify right side
    189,736.40x = 24,042,129,321.84
  5. Step 5: Solve for x
    x = 24,042,129,321.84/189,736.40
  6. Step 6: Final answer
    x = 126,713.32

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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.