Home / 140,829.20-211,311.48-87,506.72

Finding the Fourth Proportional to 140,829.20, 211,311.48 and 87,506.72

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Solution

The fourth proportional to 140,829.20, 211,311.48 and 87,506.72 is: 131,302.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,829.20 : 211,311.48 = 87,506.72 : x
  2. Step 2: Convert to fraction form
    140,829.20/211,311.48 = 87,506.72/x
  3. Step 3: Cross multiply
    140,829.20x = 211,311.48 × 87,506.72
  4. Step 4: Simplify right side
    140,829.20x = 18,491,174,513.15
  5. Step 5: Solve for x
    x = 18,491,174,513.15/140,829.20
  6. Step 6: Final answer
    x = 131,302.13

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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.