Home / 145,801.18-218,207.82-89,676.90

Finding the Fourth Proportional to 145,801.18, 218,207.82 and 89,676.90

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Solution

The fourth proportional to 145,801.18, 218,207.82 and 89,676.90 is: 134,211.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,801.18 : 218,207.82 = 89,676.90 : x
  2. Step 2: Convert to fraction form
    145,801.18/218,207.82 = 89,676.90/x
  3. Step 3: Cross multiply
    145,801.18x = 218,207.82 × 89,676.90
  4. Step 4: Simplify right side
    145,801.18x = 19,568,200,853.36
  5. Step 5: Solve for x
    x = 19,568,200,853.36/145,801.18
  6. Step 6: Final answer
    x = 134,211.54

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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.