Home / 130,511.70-196,185.15-121,266.90

Finding the Fourth Proportional to 130,511.70, 196,185.15 and 121,266.90

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Solution

The fourth proportional to 130,511.70, 196,185.15 and 121,266.90 is: 182,288.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,511.70 : 196,185.15 = 121,266.90 : x
  2. Step 2: Convert to fraction form
    130,511.70/196,185.15 = 121,266.90/x
  3. Step 3: Cross multiply
    130,511.70x = 196,185.15 × 121,266.90
  4. Step 4: Simplify right side
    130,511.70x = 23,790,764,966.54
  5. Step 5: Solve for x
    x = 23,790,764,966.54/130,511.70
  6. Step 6: Final answer
    x = 182,288.37

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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.