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Finding the Fourth Proportional to 236,070, 325,776.60 and 130,086

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Solution

The fourth proportional to 236,070, 325,776.60 and 130,086 is: 179,518.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,070 : 325,776.60 = 130,086 : x
  2. Step 2: Convert to fraction form
    236,070/325,776.60 = 130,086/x
  3. Step 3: Cross multiply
    236,070x = 325,776.60 × 130,086
  4. Step 4: Simplify right side
    236,070x = 42,378,974,787.60
  5. Step 5: Solve for x
    x = 42,378,974,787.60/236,070
  6. Step 6: Final answer
    x = 179,518.68

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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.