Home / 115,276.32-172,992.24-45,146.88

Finding the Fourth Proportional to 115,276.32, 172,992.24 and 45,146.88

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Solution

The fourth proportional to 115,276.32, 172,992.24 and 45,146.88 is: 67,750.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,276.32 : 172,992.24 = 45,146.88 : x
  2. Step 2: Convert to fraction form
    115,276.32/172,992.24 = 45,146.88/x
  3. Step 3: Cross multiply
    115,276.32x = 172,992.24 × 45,146.88
  4. Step 4: Simplify right side
    115,276.32x = 7,810,059,900.21
  5. Step 5: Solve for x
    x = 7,810,059,900.21/115,276.32
  6. Step 6: Final answer
    x = 67,750.77

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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.