Home / 115,170.22-172,779.93-40,292.80

Finding the Fourth Proportional to 115,170.22, 172,779.93 and 40,292.80

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Solution

The fourth proportional to 115,170.22, 172,779.93 and 40,292.80 is: 60,447.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,170.22 : 172,779.93 = 40,292.80 : x
  2. Step 2: Convert to fraction form
    115,170.22/172,779.93 = 40,292.80/x
  3. Step 3: Cross multiply
    115,170.22x = 172,779.93 × 40,292.80
  4. Step 4: Simplify right side
    115,170.22x = 6,961,786,962.04
  5. Step 5: Solve for x
    x = 6,961,786,962.04/115,170.22
  6. Step 6: Final answer
    x = 60,447.81

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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.