Home / 128,927.12-193,311.28-44,667.68

Finding the Fourth Proportional to 128,927.12, 193,311.28 and 44,667.68

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Solution

The fourth proportional to 128,927.12, 193,311.28 and 44,667.68 is: 66,974.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,927.12 : 193,311.28 = 44,667.68 : x
  2. Step 2: Convert to fraction form
    128,927.12/193,311.28 = 44,667.68/x
  3. Step 3: Cross multiply
    128,927.12x = 193,311.28 × 44,667.68
  4. Step 4: Simplify right side
    128,927.12x = 8,634,766,395.43
  5. Step 5: Solve for x
    x = 8,634,766,395.43/128,927.12
  6. Step 6: Final answer
    x = 66,974.01

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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.