Home / 99,942.51-149,913.72-49,972.32

Finding the Fourth Proportional to 99,942.51, 149,913.72 and 49,972.32

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Solution

The fourth proportional to 99,942.51, 149,913.72 and 49,972.32 is: 74,958.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,942.51 : 149,913.72 = 49,972.32 : x
  2. Step 2: Convert to fraction form
    99,942.51/149,913.72 = 49,972.32/x
  3. Step 3: Cross multiply
    99,942.51x = 149,913.72 × 49,972.32
  4. Step 4: Simplify right side
    99,942.51x = 7,491,536,388.23
  5. Step 5: Solve for x
    x = 7,491,536,388.23/99,942.51
  6. Step 6: Final answer
    x = 74,958.46

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1.5x scale

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.