Home / 107,533.55-161,333.13-54,979.94

Finding the Fourth Proportional to 107,533.55, 161,333.13 and 54,979.94

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Solution

The fourth proportional to 107,533.55, 161,333.13 and 54,979.94 is: 82,486.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,533.55 : 161,333.13 = 54,979.94 : x
  2. Step 2: Convert to fraction form
    107,533.55/161,333.13 = 54,979.94/x
  3. Step 3: Cross multiply
    107,533.55x = 161,333.13 × 54,979.94
  4. Step 4: Simplify right side
    107,533.55x = 8,870,085,807.41
  5. Step 5: Solve for x
    x = 8,870,085,807.41/107,533.55
  6. Step 6: Final answer
    x = 82,486.68

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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.