Home / 189,285.38-261,213.32-108,718.12

Finding the Fourth Proportional to 189,285.38, 261,213.32 and 108,718.12

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Solution

The fourth proportional to 189,285.38, 261,213.32 and 108,718.12 is: 150,030.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,285.38 : 261,213.32 = 108,718.12 : x
  2. Step 2: Convert to fraction form
    189,285.38/261,213.32 = 108,718.12/x
  3. Step 3: Cross multiply
    189,285.38x = 261,213.32 × 108,718.12
  4. Step 4: Simplify right side
    189,285.38x = 28,398,621,069.36
  5. Step 5: Solve for x
    x = 28,398,621,069.36/189,285.38
  6. Step 6: Final answer
    x = 150,030.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.