Home / 135,928.10-187,595.48-82,242.72

Finding the Fourth Proportional to 135,928.10, 187,595.48 and 82,242.72

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Solution

The fourth proportional to 135,928.10, 187,595.48 and 82,242.72 is: 113,503.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,928.10 : 187,595.48 = 82,242.72 : x
  2. Step 2: Convert to fraction form
    135,928.10/187,595.48 = 82,242.72/x
  3. Step 3: Cross multiply
    135,928.10x = 187,595.48 × 82,242.72
  4. Step 4: Simplify right side
    135,928.10x = 15,428,362,277.90
  5. Step 5: Solve for x
    x = 15,428,362,277.90/135,928.10
  6. Step 6: Final answer
    x = 113,503.85

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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.