Home / 115,913.32-159,935.79-68,149.24

Finding the Fourth Proportional to 115,913.32, 159,935.79 and 68,149.24

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Solution

The fourth proportional to 115,913.32, 159,935.79 and 68,149.24 is: 94,031.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,913.32 : 159,935.79 = 68,149.24 : x
  2. Step 2: Convert to fraction form
    115,913.32/159,935.79 = 68,149.24/x
  3. Step 3: Cross multiply
    115,913.32x = 159,935.79 × 68,149.24
  4. Step 4: Simplify right side
    115,913.32x = 10,899,502,537.30
  5. Step 5: Solve for x
    x = 10,899,502,537.30/115,913.32
  6. Step 6: Final answer
    x = 94,031.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.