Home / 171,820.27-257,830.85-71,971.98

Finding the Fourth Proportional to 171,820.27, 257,830.85 and 71,971.98

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Solution

The fourth proportional to 171,820.27, 257,830.85 and 71,971.98 is: 108,000.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,820.27 : 257,830.85 = 71,971.98 : x
  2. Step 2: Convert to fraction form
    171,820.27/257,830.85 = 71,971.98/x
  3. Step 3: Cross multiply
    171,820.27x = 257,830.85 × 71,971.98
  4. Step 4: Simplify right side
    171,820.27x = 18,556,596,779.58
  5. Step 5: Solve for x
    x = 18,556,596,779.58/171,820.27
  6. Step 6: Final answer
    x = 108,000.04

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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.