Home / 119,378.73-164,739.21-65,663.75

Finding the Fourth Proportional to 119,378.73, 164,739.21 and 65,663.75

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Solution

The fourth proportional to 119,378.73, 164,739.21 and 65,663.75 is: 90,614.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,378.73 : 164,739.21 = 65,663.75 : x
  2. Step 2: Convert to fraction form
    119,378.73/164,739.21 = 65,663.75/x
  3. Step 3: Cross multiply
    119,378.73x = 164,739.21 × 65,663.75
  4. Step 4: Simplify right side
    119,378.73x = 10,817,393,476.94
  5. Step 5: Solve for x
    x = 10,817,393,476.94/119,378.73
  6. Step 6: Final answer
    x = 90,614.08

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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.