Home / 116,979.80-161,431.60-63,264.86

Finding the Fourth Proportional to 116,979.80, 161,431.60 and 63,264.86

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Solution

The fourth proportional to 116,979.80, 161,431.60 and 63,264.86 is: 87,305.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,979.80 : 161,431.60 = 63,264.86 : x
  2. Step 2: Convert to fraction form
    116,979.80/161,431.60 = 63,264.86/x
  3. Step 3: Cross multiply
    116,979.80x = 161,431.60 × 63,264.86
  4. Step 4: Simplify right side
    116,979.80x = 10,212,946,450.09
  5. Step 5: Solve for x
    x = 10,212,946,450.09/116,979.80
  6. Step 6: Final answer
    x = 87,305.21

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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.