Home / 115,252.08-172,876.32-70,286.64

Finding the Fourth Proportional to 115,252.08, 172,876.32 and 70,286.64

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Solution

The fourth proportional to 115,252.08, 172,876.32 and 70,286.64 is: 105,428.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,252.08 : 172,876.32 = 70,286.64 : x
  2. Step 2: Convert to fraction form
    115,252.08/172,876.32 = 70,286.64/x
  3. Step 3: Cross multiply
    115,252.08x = 172,876.32 × 70,286.64
  4. Step 4: Simplify right side
    115,252.08x = 12,150,895,668.36
  5. Step 5: Solve for x
    x = 12,150,895,668.36/115,252.08
  6. Step 6: Final answer
    x = 105,428.86

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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.