Home / 130,940.31-196,421.78-36,170.46

Finding the Fourth Proportional to 130,940.31, 196,421.78 and 36,170.46

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Solution

The fourth proportional to 130,940.31, 196,421.78 and 36,170.46 is: 54,258.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,940.31 : 196,421.78 = 36,170.46 : x
  2. Step 2: Convert to fraction form
    130,940.31/196,421.78 = 36,170.46/x
  3. Step 3: Cross multiply
    130,940.31x = 196,421.78 × 36,170.46
  4. Step 4: Simplify right side
    130,940.31x = 7,104,666,227.04
  5. Step 5: Solve for x
    x = 7,104,666,227.04/130,940.31
  6. Step 6: Final answer
    x = 54,258.81

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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.