Home / 115,678.49-159,629.64-63,992.48

Finding the Fourth Proportional to 115,678.49, 159,629.64 and 63,992.48

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Solution

The fourth proportional to 115,678.49, 159,629.64 and 63,992.48 is: 88,305.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,678.49 : 159,629.64 = 63,992.48 : x
  2. Step 2: Convert to fraction form
    115,678.49/159,629.64 = 63,992.48/x
  3. Step 3: Cross multiply
    115,678.49x = 159,629.64 × 63,992.48
  4. Step 4: Simplify right side
    115,678.49x = 10,215,095,746.96
  5. Step 5: Solve for x
    x = 10,215,095,746.96/115,678.49
  6. Step 6: Final answer
    x = 88,305.93

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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.