Home / 185,631.28-256,171.04-105,057.32

Finding the Fourth Proportional to 185,631.28, 256,171.04 and 105,057.32

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Solution

The fourth proportional to 185,631.28, 256,171.04 and 105,057.32 is: 144,979.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,631.28 : 256,171.04 = 105,057.32 : x
  2. Step 2: Convert to fraction form
    185,631.28/256,171.04 = 105,057.32/x
  3. Step 3: Cross multiply
    185,631.28x = 256,171.04 × 105,057.32
  4. Step 4: Simplify right side
    185,631.28x = 26,912,642,924.01
  5. Step 5: Solve for x
    x = 26,912,642,924.01/185,631.28
  6. Step 6: Final answer
    x = 144,979.03

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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.