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Finding the Fourth Proportional to 155,223, 214,208.01 and 88,155

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Solution

The fourth proportional to 155,223, 214,208.01 and 88,155 is: 121,654.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,223 : 214,208.01 = 88,155 : x
  2. Step 2: Convert to fraction form
    155,223/214,208.01 = 88,155/x
  3. Step 3: Cross multiply
    155,223x = 214,208.01 × 88,155
  4. Step 4: Simplify right side
    155,223x = 18,883,507,121.55
  5. Step 5: Solve for x
    x = 18,883,507,121.55/155,223
  6. Step 6: Final answer
    x = 121,654.05

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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.