Home / 212,432.28-293,122.20-121,771.56

Finding the Fourth Proportional to 212,432.28, 293,122.20 and 121,771.56

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Solution

The fourth proportional to 212,432.28, 293,122.20 and 121,771.56 is: 168,025.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,432.28 : 293,122.20 = 121,771.56 : x
  2. Step 2: Convert to fraction form
    212,432.28/293,122.20 = 121,771.56/x
  3. Step 3: Cross multiply
    212,432.28x = 293,122.20 × 121,771.56
  4. Step 4: Simplify right side
    212,432.28x = 35,693,947,564.63
  5. Step 5: Solve for x
    x = 35,693,947,564.63/212,432.28
  6. Step 6: Final answer
    x = 168,025.06

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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.