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Finding the Fourth Proportional to 160,804.80, 221,907.60 and 88,208

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Solution

The fourth proportional to 160,804.80, 221,907.60 and 88,208 is: 121,725.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,804.80 : 221,907.60 = 88,208 : x
  2. Step 2: Convert to fraction form
    160,804.80/221,907.60 = 88,208/x
  3. Step 3: Cross multiply
    160,804.80x = 221,907.60 × 88,208
  4. Step 4: Simplify right side
    160,804.80x = 19,574,025,580.80
  5. Step 5: Solve for x
    x = 19,574,025,580.80/160,804.80
  6. Step 6: Final answer
    x = 121,725.38

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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.