Home / 212,348.16-293,052.56-121,719.20

Finding the Fourth Proportional to 212,348.16, 293,052.56 and 121,719.20

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Solution

The fourth proportional to 212,348.16, 293,052.56 and 121,719.20 is: 167,979.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,348.16 : 293,052.56 = 121,719.20 : x
  2. Step 2: Convert to fraction form
    212,348.16/293,052.56 = 121,719.20/x
  3. Step 3: Cross multiply
    212,348.16x = 293,052.56 × 121,719.20
  4. Step 4: Simplify right side
    212,348.16x = 35,670,123,161.15
  5. Step 5: Solve for x
    x = 35,670,123,161.15/212,348.16
  6. Step 6: Final answer
    x = 167,979.43

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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.