Home / 165,239.14-228,031.80-89,787.64

Finding the Fourth Proportional to 165,239.14, 228,031.80 and 89,787.64

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Solution

The fourth proportional to 165,239.14, 228,031.80 and 89,787.64 is: 123,907.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,239.14 : 228,031.80 = 89,787.64 : x
  2. Step 2: Convert to fraction form
    165,239.14/228,031.80 = 89,787.64/x
  3. Step 3: Cross multiply
    165,239.14x = 228,031.80 × 89,787.64
  4. Step 4: Simplify right side
    165,239.14x = 20,474,437,166.95
  5. Step 5: Solve for x
    x = 20,474,437,166.95/165,239.14
  6. Step 6: Final answer
    x = 123,907.91

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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.