Home / 89,826.40-134,739.60-79,717.60

Finding the Fourth Proportional to 89,826.40, 134,739.60 and 79,717.60

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Solution

The fourth proportional to 89,826.40, 134,739.60 and 79,717.60 is: 119,576.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,826.40 : 134,739.60 = 79,717.60 : x
  2. Step 2: Convert to fraction form
    89,826.40/134,739.60 = 79,717.60/x
  3. Step 3: Cross multiply
    89,826.40x = 134,739.60 × 79,717.60
  4. Step 4: Simplify right side
    89,826.40x = 10,741,117,536.96
  5. Step 5: Solve for x
    x = 10,741,117,536.96/89,826.40
  6. Step 6: Final answer
    x = 119,576.40

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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.