Home / 212,107.20-292,694.40-121,463.04

Finding the Fourth Proportional to 212,107.20, 292,694.40 and 121,463.04

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Solution

The fourth proportional to 212,107.20, 292,694.40 and 121,463.04 is: 167,611.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,107.20 : 292,694.40 = 121,463.04 : x
  2. Step 2: Convert to fraction form
    212,107.20/292,694.40 = 121,463.04/x
  3. Step 3: Cross multiply
    212,107.20x = 292,694.40 × 121,463.04
  4. Step 4: Simplify right side
    212,107.20x = 35,551,551,614.98
  5. Step 5: Solve for x
    x = 35,551,551,614.98/212,107.20
  6. Step 6: Final answer
    x = 167,611.24

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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.