Home / 115,276.36-172,865.58-45,144.52

Finding the Fourth Proportional to 115,276.36, 172,865.58 and 45,144.52

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Solution

The fourth proportional to 115,276.36, 172,865.58 and 45,144.52 is: 67,697.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,276.36 : 172,865.58 = 45,144.52 : x
  2. Step 2: Convert to fraction form
    115,276.36/172,865.58 = 45,144.52/x
  3. Step 3: Cross multiply
    115,276.36x = 172,865.58 × 45,144.52
  4. Step 4: Simplify right side
    115,276.36x = 7,803,933,633.62
  5. Step 5: Solve for x
    x = 7,803,933,633.62/115,276.36
  6. Step 6: Final answer
    x = 67,697.61

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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.