Home / 130,982.40-196,493.44-66,905.36

Finding the Fourth Proportional to 130,982.40, 196,493.44 and 66,905.36

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Solution

The fourth proportional to 130,982.40, 196,493.44 and 66,905.36 is: 100,368.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,982.40 : 196,493.44 = 66,905.36 : x
  2. Step 2: Convert to fraction form
    130,982.40/196,493.44 = 66,905.36/x
  3. Step 3: Cross multiply
    130,982.40x = 196,493.44 × 66,905.36
  4. Step 4: Simplify right side
    130,982.40x = 13,146,464,340.84
  5. Step 5: Solve for x
    x = 13,146,464,340.84/130,982.40
  6. Step 6: Final answer
    x = 100,368.17

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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.