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Finding the Fourth Proportional to 140,656.37, 210,838.75 and 87,944.81

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Solution

The fourth proportional to 140,656.37, 210,838.75 and 87,944.81 is: 131,826.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,656.37 : 210,838.75 = 87,944.81 : x
  2. Step 2: Convert to fraction form
    140,656.37/210,838.75 = 87,944.81/x
  3. Step 3: Cross multiply
    140,656.37x = 210,838.75 × 87,944.81
  4. Step 4: Simplify right side
    140,656.37x = 18,542,172,535.33
  5. Step 5: Solve for x
    x = 18,542,172,535.33/140,656.37
  6. Step 6: Final answer
    x = 131,826.05

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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.