Home / 115,289.64-172,939.77-35,321.88

Finding the Fourth Proportional to 115,289.64, 172,939.77 and 35,321.88

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Solution

The fourth proportional to 115,289.64, 172,939.77 and 35,321.88 is: 52,984.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,289.64 : 172,939.77 = 35,321.88 : x
  2. Step 2: Convert to fraction form
    115,289.64/172,939.77 = 35,321.88/x
  3. Step 3: Cross multiply
    115,289.64x = 172,939.77 × 35,321.88
  4. Step 4: Simplify right side
    115,289.64x = 6,108,557,803.17
  5. Step 5: Solve for x
    x = 6,108,557,803.17/115,289.64
  6. Step 6: Final answer
    x = 52,984.45

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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.