Home / 165,228.10-247,702.83-71,663.38

Finding the Fourth Proportional to 165,228.10, 247,702.83 and 71,663.38

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Solution

The fourth proportional to 165,228.10, 247,702.83 and 71,663.38 is: 107,434.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,228.10 : 247,702.83 = 71,663.38 : x
  2. Step 2: Convert to fraction form
    165,228.10/247,702.83 = 71,663.38/x
  3. Step 3: Cross multiply
    165,228.10x = 247,702.83 × 71,663.38
  4. Step 4: Simplify right side
    165,228.10x = 17,751,222,033.37
  5. Step 5: Solve for x
    x = 17,751,222,033.37/165,228.10
  6. Step 6: Final answer
    x = 107,434.64

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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.