Home / 119,376.63-164,739.83-65,665.73

Finding the Fourth Proportional to 119,376.63, 164,739.83 and 65,665.73

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Solution

The fourth proportional to 119,376.63, 164,739.83 and 65,665.73 is: 90,618.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,376.63 : 164,739.83 = 65,665.73 : x
  2. Step 2: Convert to fraction form
    119,376.63/164,739.83 = 65,665.73/x
  3. Step 3: Cross multiply
    119,376.63x = 164,739.83 × 65,665.73
  4. Step 4: Simplify right side
    119,376.63x = 10,817,761,197.03
  5. Step 5: Solve for x
    x = 10,817,761,197.03/119,376.63
  6. Step 6: Final answer
    x = 90,618.75

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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.