Home / 115,246.92-172,767.78-45,175.08

Finding the Fourth Proportional to 115,246.92, 172,767.78 and 45,175.08

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Solution

The fourth proportional to 115,246.92, 172,767.78 and 45,175.08 is: 67,722.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,246.92 : 172,767.78 = 45,175.08 : x
  2. Step 2: Convert to fraction form
    115,246.92/172,767.78 = 45,175.08/x
  3. Step 3: Cross multiply
    115,246.92x = 172,767.78 × 45,175.08
  4. Step 4: Simplify right side
    115,246.92x = 7,804,798,282.92
  5. Step 5: Solve for x
    x = 7,804,798,282.92/115,246.92
  6. Step 6: Final answer
    x = 67,722.40

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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.