Home / 212,899.38-293,805.39-137,579.10

Finding the Fourth Proportional to 212,899.38, 293,805.39 and 137,579.10

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Solution

The fourth proportional to 212,899.38, 293,805.39 and 137,579.10 is: 189,861.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,899.38 : 293,805.39 = 137,579.10 : x
  2. Step 2: Convert to fraction form
    212,899.38/293,805.39 = 137,579.10/x
  3. Step 3: Cross multiply
    212,899.38x = 293,805.39 × 137,579.10
  4. Step 4: Simplify right side
    212,899.38x = 40,421,481,131.35
  5. Step 5: Solve for x
    x = 40,421,481,131.35/212,899.38
  6. Step 6: Final answer
    x = 189,861.90

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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.