Home / 99,784.20-149,849.10-96,673.80

Finding the Fourth Proportional to 99,784.20, 149,849.10 and 96,673.80

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Solution

The fourth proportional to 99,784.20, 149,849.10 and 96,673.80 is: 145,178.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,784.20 : 149,849.10 = 96,673.80 : x
  2. Step 2: Convert to fraction form
    99,784.20/149,849.10 = 96,673.80/x
  3. Step 3: Cross multiply
    99,784.20x = 149,849.10 × 96,673.80
  4. Step 4: Simplify right side
    99,784.20x = 14,486,481,923.58
  5. Step 5: Solve for x
    x = 14,486,481,923.58/99,784.20
  6. Step 6: Final answer
    x = 145,178.11

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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.