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Finding the Fourth Proportional to 155,072.88, 232,606.62 and 84,913.92

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Solution

The fourth proportional to 155,072.88, 232,606.62 and 84,913.92 is: 127,369.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,072.88 : 232,606.62 = 84,913.92 : x
  2. Step 2: Convert to fraction form
    155,072.88/232,606.62 = 84,913.92/x
  3. Step 3: Cross multiply
    155,072.88x = 232,606.62 × 84,913.92
  4. Step 4: Simplify right side
    155,072.88x = 19,751,539,922.15
  5. Step 5: Solve for x
    x = 19,751,539,922.15/155,072.88
  6. Step 6: Final answer
    x = 127,369.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.