Home / 115,270.86-172,911.60-43,240.98

Finding the Fourth Proportional to 115,270.86, 172,911.60 and 43,240.98

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Solution

The fourth proportional to 115,270.86, 172,911.60 and 43,240.98 is: 64,863.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,270.86 : 172,911.60 = 43,240.98 : x
  2. Step 2: Convert to fraction form
    115,270.86/172,911.60 = 43,240.98/x
  3. Step 3: Cross multiply
    115,270.86x = 172,911.60 × 43,240.98
  4. Step 4: Simplify right side
    115,270.86x = 7,476,867,037.37
  5. Step 5: Solve for x
    x = 7,476,867,037.37/115,270.86
  6. Step 6: Final answer
    x = 64,863.46

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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.