Home / 139,933.08-193,181.58-112,410.90

Finding the Fourth Proportional to 139,933.08, 193,181.58 and 112,410.90

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Solution

The fourth proportional to 139,933.08, 193,181.58 and 112,410.90 is: 155,186.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,933.08 : 193,181.58 = 112,410.90 : x
  2. Step 2: Convert to fraction form
    139,933.08/193,181.58 = 112,410.90/x
  3. Step 3: Cross multiply
    139,933.08x = 193,181.58 × 112,410.90
  4. Step 4: Simplify right side
    139,933.08x = 21,715,715,271.22
  5. Step 5: Solve for x
    x = 21,715,715,271.22/139,933.08
  6. Step 6: Final answer
    x = 155,186.43

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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.