Home / 135,394.10-186,884.35-87,650.67

Finding the Fourth Proportional to 135,394.10, 186,884.35 and 87,650.67

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Solution

The fourth proportional to 135,394.10, 186,884.35 and 87,650.67 is: 120,984.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,394.10 : 186,884.35 = 87,650.67 : x
  2. Step 2: Convert to fraction form
    135,394.10/186,884.35 = 87,650.67/x
  3. Step 3: Cross multiply
    135,394.10x = 186,884.35 × 87,650.67
  4. Step 4: Simplify right side
    135,394.10x = 16,380,538,490.01
  5. Step 5: Solve for x
    x = 16,380,538,490.01/135,394.10
  6. Step 6: Final answer
    x = 120,984.14

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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.