Home / 345,120.10-517,372.35-134,709.10

Finding the Fourth Proportional to 345,120.10, 517,372.35 and 134,709.10

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Solution

The fourth proportional to 345,120.10, 517,372.35 and 134,709.10 is: 201,943.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,120.10 : 517,372.35 = 134,709.10 : x
  2. Step 2: Convert to fraction form
    345,120.10/517,372.35 = 134,709.10/x
  3. Step 3: Cross multiply
    345,120.10x = 517,372.35 × 134,709.10
  4. Step 4: Simplify right side
    345,120.10x = 69,694,763,633.39
  5. Step 5: Solve for x
    x = 69,694,763,633.39/345,120.10
  6. Step 6: Final answer
    x = 201,943.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.