Home / 107,438.10-161,100.45-36,336.30

Finding the Fourth Proportional to 107,438.10, 161,100.45 and 36,336.30

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Solution

The fourth proportional to 107,438.10, 161,100.45 and 36,336.30 is: 54,485.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,438.10 : 161,100.45 = 36,336.30 : x
  2. Step 2: Convert to fraction form
    107,438.10/161,100.45 = 36,336.30/x
  3. Step 3: Cross multiply
    107,438.10x = 161,100.45 × 36,336.30
  4. Step 4: Simplify right side
    107,438.10x = 5,853,794,281.34
  5. Step 5: Solve for x
    x = 5,853,794,281.34/107,438.10
  6. Step 6: Final answer
    x = 54,485.27

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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.