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Finding the Fourth Proportional to 155,616, 214,759.68 and 88,547.84

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Solution

The fourth proportional to 155,616, 214,759.68 and 88,547.84 is: 122,201.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,616 : 214,759.68 = 88,547.84 : x
  2. Step 2: Convert to fraction form
    155,616/214,759.68 = 88,547.84/x
  3. Step 3: Cross multiply
    155,616x = 214,759.68 × 88,547.84
  4. Step 4: Simplify right side
    155,616x = 19,016,505,783.09
  5. Step 5: Solve for x
    x = 19,016,505,783.09/155,616
  6. Step 6: Final answer
    x = 122,201.48

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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.