Home / 212,427.28-293,115.32-121,766.56

Finding the Fourth Proportional to 212,427.28, 293,115.32 and 121,766.56

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Solution

The fourth proportional to 212,427.28, 293,115.32 and 121,766.56 is: 168,018.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,427.28 : 293,115.32 = 121,766.56 : x
  2. Step 2: Convert to fraction form
    212,427.28/293,115.32 = 121,766.56/x
  3. Step 3: Cross multiply
    212,427.28x = 293,115.32 × 121,766.56
  4. Step 4: Simplify right side
    212,427.28x = 35,691,644,199.70
  5. Step 5: Solve for x
    x = 35,691,644,199.70/212,427.28
  6. Step 6: Final answer
    x = 168,018.18

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1.5x scale

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.