Home / 169,979.40-254,450.70-99,649.80

Finding the Fourth Proportional to 169,979.40, 254,450.70 and 99,649.80

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Solution

The fourth proportional to 169,979.40, 254,450.70 and 99,649.80 is: 149,170.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,979.40 : 254,450.70 = 99,649.80 : x
  2. Step 2: Convert to fraction form
    169,979.40/254,450.70 = 99,649.80/x
  3. Step 3: Cross multiply
    169,979.40x = 254,450.70 × 99,649.80
  4. Step 4: Simplify right side
    169,979.40x = 25,355,961,364.86
  5. Step 5: Solve for x
    x = 25,355,961,364.86/169,979.40
  6. Step 6: Final answer
    x = 149,170.79

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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.