Home / 212,112-292,721.40-116,625.60

Finding the Fourth Proportional to 212,112, 292,721.40 and 116,625.60

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Solution

The fourth proportional to 212,112, 292,721.40 and 116,625.60 is: 160,947.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,112 : 292,721.40 = 116,625.60 : x
  2. Step 2: Convert to fraction form
    212,112/292,721.40 = 116,625.60/x
  3. Step 3: Cross multiply
    212,112x = 292,721.40 × 116,625.60
  4. Step 4: Simplify right side
    212,112x = 34,138,808,907.84
  5. Step 5: Solve for x
    x = 34,138,808,907.84/212,112
  6. Step 6: Final answer
    x = 160,947.09

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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.