Home / 231,211.67-346,779.66-81,416.75

Finding the Fourth Proportional to 231,211.67, 346,779.66 and 81,416.75

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Solution

The fourth proportional to 231,211.67, 346,779.66 and 81,416.75 is: 122,111.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,211.67 : 346,779.66 = 81,416.75 : x
  2. Step 2: Convert to fraction form
    231,211.67/346,779.66 = 81,416.75/x
  3. Step 3: Cross multiply
    231,211.67x = 346,779.66 × 81,416.75
  4. Step 4: Simplify right side
    231,211.67x = 28,233,671,454.72
  5. Step 5: Solve for x
    x = 28,233,671,454.72/231,211.67
  6. Step 6: Final answer
    x = 122,111.80

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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.