Home / 130,028.40-194,896.80-66,824.10

Finding the Fourth Proportional to 130,028.40, 194,896.80 and 66,824.10

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Solution

The fourth proportional to 130,028.40, 194,896.80 and 66,824.10 is: 100,161.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,028.40 : 194,896.80 = 66,824.10 : x
  2. Step 2: Convert to fraction form
    130,028.40/194,896.80 = 66,824.10/x
  3. Step 3: Cross multiply
    130,028.40x = 194,896.80 × 66,824.10
  4. Step 4: Simplify right side
    130,028.40x = 13,023,803,252.88
  5. Step 5: Solve for x
    x = 13,023,803,252.88/130,028.40
  6. Step 6: Final answer
    x = 100,161.22

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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.