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Finding the Fourth Proportional to 172,976.94, 238,702.77 and 101,404.64

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Solution

The fourth proportional to 172,976.94, 238,702.77 and 101,404.64 is: 139,935.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,976.94 : 238,702.77 = 101,404.64 : x
  2. Step 2: Convert to fraction form
    172,976.94/238,702.77 = 101,404.64/x
  3. Step 3: Cross multiply
    172,976.94x = 238,702.77 × 101,404.64
  4. Step 4: Simplify right side
    172,976.94x = 24,205,567,265.34
  5. Step 5: Solve for x
    x = 24,205,567,265.34/172,976.94
  6. Step 6: Final answer
    x = 139,935.23

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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.