Home / 135,820.70-187,444.43-79,250.30

Finding the Fourth Proportional to 135,820.70, 187,444.43 and 79,250.30

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Solution

The fourth proportional to 135,820.70, 187,444.43 and 79,250.30 is: 109,372.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,820.70 : 187,444.43 = 79,250.30 : x
  2. Step 2: Convert to fraction form
    135,820.70/187,444.43 = 79,250.30/x
  3. Step 3: Cross multiply
    135,820.70x = 187,444.43 × 79,250.30
  4. Step 4: Simplify right side
    135,820.70x = 14,855,025,977.36
  5. Step 5: Solve for x
    x = 14,855,025,977.36/135,820.70
  6. Step 6: Final answer
    x = 109,372.33

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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.