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Finding the Fourth Proportional to 188,590.64, 260,252.88 and 103,702.64

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Solution

The fourth proportional to 188,590.64, 260,252.88 and 103,702.64 is: 143,108.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,590.64 : 260,252.88 = 103,702.64 : x
  2. Step 2: Convert to fraction form
    188,590.64/260,252.88 = 103,702.64/x
  3. Step 3: Cross multiply
    188,590.64x = 260,252.88 × 103,702.64
  4. Step 4: Simplify right side
    188,590.64x = 26,988,910,723.60
  5. Step 5: Solve for x
    x = 26,988,910,723.60/188,590.64
  6. Step 6: Final answer
    x = 143,108.43

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1.5x scale

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.