Home / 115,091.96-172,564.14-79,453.44

Finding the Fourth Proportional to 115,091.96, 172,564.14 and 79,453.44

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Solution

The fourth proportional to 115,091.96, 172,564.14 and 79,453.44 is: 119,129.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,091.96 : 172,564.14 = 79,453.44 : x
  2. Step 2: Convert to fraction form
    115,091.96/172,564.14 = 79,453.44/x
  3. Step 3: Cross multiply
    115,091.96x = 172,564.14 × 79,453.44
  4. Step 4: Simplify right side
    115,091.96x = 13,710,814,543.64
  5. Step 5: Solve for x
    x = 13,710,814,543.64/115,091.96
  6. Step 6: Final answer
    x = 119,129.21

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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.