Home / 104,912.07-144,780.30-57,165.36

Finding the Fourth Proportional to 104,912.07, 144,780.30 and 57,165.36

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Solution

The fourth proportional to 104,912.07, 144,780.30 and 57,165.36 is: 78,889.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,912.07 : 144,780.30 = 57,165.36 : x
  2. Step 2: Convert to fraction form
    104,912.07/144,780.30 = 57,165.36/x
  3. Step 3: Cross multiply
    104,912.07x = 144,780.30 × 57,165.36
  4. Step 4: Simplify right side
    104,912.07x = 8,276,417,970.41
  5. Step 5: Solve for x
    x = 8,276,417,970.41/104,912.07
  6. Step 6: Final answer
    x = 78,889.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.