Home / 115,305.78-172,976.52-48,746.16

Finding the Fourth Proportional to 115,305.78, 172,976.52 and 48,746.16

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Solution

The fourth proportional to 115,305.78, 172,976.52 and 48,746.16 is: 73,126.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,305.78 : 172,976.52 = 48,746.16 : x
  2. Step 2: Convert to fraction form
    115,305.78/172,976.52 = 48,746.16/x
  3. Step 3: Cross multiply
    115,305.78x = 172,976.52 × 48,746.16
  4. Step 4: Simplify right side
    115,305.78x = 8,431,941,120.16
  5. Step 5: Solve for x
    x = 8,431,941,120.16/115,305.78
  6. Step 6: Final answer
    x = 73,126.79

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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.