Home / 145,789.34-201,188.41-82,147.64

Finding the Fourth Proportional to 145,789.34, 201,188.41 and 82,147.64

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Solution

The fourth proportional to 145,789.34, 201,188.41 and 82,147.64 is: 113,363.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,789.34 : 201,188.41 = 82,147.64 : x
  2. Step 2: Convert to fraction form
    145,789.34/201,188.41 = 82,147.64/x
  3. Step 3: Cross multiply
    145,789.34x = 201,188.41 × 82,147.64
  4. Step 4: Simplify right side
    145,789.34x = 16,527,151,865.54
  5. Step 5: Solve for x
    x = 16,527,151,865.54/145,789.34
  6. Step 6: Final answer
    x = 113,363.24

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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.