Home / 423,659.40-635,488.65-108,116.28

Finding the Fourth Proportional to 423,659.40, 635,488.65 and 108,116.28

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Solution

The fourth proportional to 423,659.40, 635,488.65 and 108,116.28 is: 162,174.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,659.40 : 635,488.65 = 108,116.28 : x
  2. Step 2: Convert to fraction form
    423,659.40/635,488.65 = 108,116.28/x
  3. Step 3: Cross multiply
    423,659.40x = 635,488.65 × 108,116.28
  4. Step 4: Simplify right side
    423,659.40x = 68,706,668,820.22
  5. Step 5: Solve for x
    x = 68,706,668,820.22/423,659.40
  6. Step 6: Final answer
    x = 162,174.31

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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.