Home / 107,905.43-161,889.74-55,351.55

Finding the Fourth Proportional to 107,905.43, 161,889.74 and 55,351.55

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Solution

The fourth proportional to 107,905.43, 161,889.74 and 55,351.55 is: 83,043.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,905.43 : 161,889.74 = 55,351.55 : x
  2. Step 2: Convert to fraction form
    107,905.43/161,889.74 = 55,351.55/x
  3. Step 3: Cross multiply
    107,905.43x = 161,889.74 × 55,351.55
  4. Step 4: Simplify right side
    107,905.43x = 8,960,848,038.10
  5. Step 5: Solve for x
    x = 8,960,848,038.10/107,905.43
  6. Step 6: Final answer
    x = 83,043.53

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1.5x scale

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.