Home / 99,719.80-149,579.70-95,783.20

Finding the Fourth Proportional to 99,719.80, 149,579.70 and 95,783.20

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Solution

The fourth proportional to 99,719.80, 149,579.70 and 95,783.20 is: 143,674.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,719.80 : 149,579.70 = 95,783.20 : x
  2. Step 2: Convert to fraction form
    99,719.80/149,579.70 = 95,783.20/x
  3. Step 3: Cross multiply
    99,719.80x = 149,579.70 × 95,783.20
  4. Step 4: Simplify right side
    99,719.80x = 14,327,222,321.04
  5. Step 5: Solve for x
    x = 14,327,222,321.04/99,719.80
  6. Step 6: Final answer
    x = 143,674.80

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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.