Home / 141,450.48-211,982.49-78,176.88

Finding the Fourth Proportional to 141,450.48, 211,982.49 and 78,176.88

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Solution

The fourth proportional to 141,450.48, 211,982.49 and 78,176.88 is: 117,158.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,450.48 : 211,982.49 = 78,176.88 : x
  2. Step 2: Convert to fraction form
    141,450.48/211,982.49 = 78,176.88/x
  3. Step 3: Cross multiply
    141,450.48x = 211,982.49 × 78,176.88
  4. Step 4: Simplify right side
    141,450.48x = 16,572,129,682.83
  5. Step 5: Solve for x
    x = 16,572,129,682.83/141,450.48
  6. Step 6: Final answer
    x = 117,158.53

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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.