Home / 107,420.14-161,141.37-51,250.78

Finding the Fourth Proportional to 107,420.14, 161,141.37 and 51,250.78

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Solution

The fourth proportional to 107,420.14, 161,141.37 and 51,250.78 is: 76,881.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,420.14 : 161,141.37 = 51,250.78 : x
  2. Step 2: Convert to fraction form
    107,420.14/161,141.37 = 51,250.78/x
  3. Step 3: Cross multiply
    107,420.14x = 161,141.37 × 51,250.78
  4. Step 4: Simplify right side
    107,420.14x = 8,258,620,902.77
  5. Step 5: Solve for x
    x = 8,258,620,902.77/107,420.14
  6. Step 6: Final answer
    x = 76,881.49

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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.