Home / 423,619.56-635,516.76-124,109.88

Finding the Fourth Proportional to 423,619.56, 635,516.76 and 124,109.88

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Solution

The fourth proportional to 423,619.56, 635,516.76 and 124,109.88 is: 186,190.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,619.56 : 635,516.76 = 124,109.88 : x
  2. Step 2: Convert to fraction form
    423,619.56/635,516.76 = 124,109.88/x
  3. Step 3: Cross multiply
    423,619.56x = 635,516.76 × 124,109.88
  4. Step 4: Simplify right side
    423,619.56x = 78,873,908,821.59
  5. Step 5: Solve for x
    x = 78,873,908,821.59/423,619.56
  6. Step 6: Final answer
    x = 186,190.43

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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.