Home / 281,537.18-422,332.58-79,132.76

Finding the Fourth Proportional to 281,537.18, 422,332.58 and 79,132.76

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Solution

The fourth proportional to 281,537.18, 422,332.58 and 79,132.76 is: 118,706.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,537.18 : 422,332.58 = 79,132.76 : x
  2. Step 2: Convert to fraction form
    281,537.18/422,332.58 = 79,132.76/x
  3. Step 3: Cross multiply
    281,537.18x = 422,332.58 × 79,132.76
  4. Step 4: Simplify right side
    281,537.18x = 33,420,340,779.49
  5. Step 5: Solve for x
    x = 33,420,340,779.49/281,537.18
  6. Step 6: Final answer
    x = 118,706.67

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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.