Home / 423,659.49-635,488.69-108,116.40

Finding the Fourth Proportional to 423,659.49, 635,488.69 and 108,116.40

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Solution

The fourth proportional to 423,659.49, 635,488.69 and 108,116.40 is: 162,174.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,659.49 : 635,488.69 = 108,116.40 : x
  2. Step 2: Convert to fraction form
    423,659.49/635,488.69 = 108,116.40/x
  3. Step 3: Cross multiply
    423,659.49x = 635,488.69 × 108,116.40
  4. Step 4: Simplify right side
    423,659.49x = 68,706,749,403.52
  5. Step 5: Solve for x
    x = 68,706,749,403.52/423,659.49
  6. Step 6: Final answer
    x = 162,174.46

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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.