Home / 135,803.08-187,408.32-75,373.76

Finding the Fourth Proportional to 135,803.08, 187,408.32 and 75,373.76

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Solution

The fourth proportional to 135,803.08, 187,408.32 and 75,373.76 is: 104,015.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,803.08 : 187,408.32 = 75,373.76 : x
  2. Step 2: Convert to fraction form
    135,803.08/187,408.32 = 75,373.76/x
  3. Step 3: Cross multiply
    135,803.08x = 187,408.32 × 75,373.76
  4. Step 4: Simplify right side
    135,803.08x = 14,125,669,733.68
  5. Step 5: Solve for x
    x = 14,125,669,733.68/135,803.08
  6. Step 6: Final answer
    x = 104,015.83

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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.