Home / 161,979.75-243,043.44-83,149.38

Finding the Fourth Proportional to 161,979.75, 243,043.44 and 83,149.38

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Solution

The fourth proportional to 161,979.75, 243,043.44 and 83,149.38 is: 124,761.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,979.75 : 243,043.44 = 83,149.38 : x
  2. Step 2: Convert to fraction form
    161,979.75/243,043.44 = 83,149.38/x
  3. Step 3: Cross multiply
    161,979.75x = 243,043.44 × 83,149.38
  4. Step 4: Simplify right side
    161,979.75x = 20,208,911,349.07
  5. Step 5: Solve for x
    x = 20,208,911,349.07/161,979.75
  6. Step 6: Final answer
    x = 124,761.96

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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.