Home / 140,537.88-210,779.64-40,672.80

Finding the Fourth Proportional to 140,537.88, 210,779.64 and 40,672.80

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Solution

The fourth proportional to 140,537.88, 210,779.64 and 40,672.80 is: 61,001.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,537.88 : 210,779.64 = 40,672.80 : x
  2. Step 2: Convert to fraction form
    140,537.88/210,779.64 = 40,672.80/x
  3. Step 3: Cross multiply
    140,537.88x = 210,779.64 × 40,672.80
  4. Step 4: Simplify right side
    140,537.88x = 8,572,998,141.79
  5. Step 5: Solve for x
    x = 8,572,998,141.79/140,537.88
  6. Step 6: Final answer
    x = 61,001.33

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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.