Home / 128,865.11-193,251.30-44,602.35

Finding the Fourth Proportional to 128,865.11, 193,251.30 and 44,602.35

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Solution

The fourth proportional to 128,865.11, 193,251.30 and 44,602.35 is: 66,887.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,865.11 : 193,251.30 = 44,602.35 : x
  2. Step 2: Convert to fraction form
    128,865.11/193,251.30 = 44,602.35/x
  3. Step 3: Cross multiply
    128,865.11x = 193,251.30 × 44,602.35
  4. Step 4: Simplify right side
    128,865.11x = 8,619,462,120.56
  5. Step 5: Solve for x
    x = 8,619,462,120.56/128,865.11
  6. Step 6: Final answer
    x = 66,887.48

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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.