Home / 133,212.02-199,645.78-99,668.90

Finding the Fourth Proportional to 133,212.02, 199,645.78 and 99,668.90

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Solution

The fourth proportional to 133,212.02, 199,645.78 and 99,668.90 is: 149,374.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,212.02 : 199,645.78 = 99,668.90 : x
  2. Step 2: Convert to fraction form
    133,212.02/199,645.78 = 99,668.90/x
  3. Step 3: Cross multiply
    133,212.02x = 199,645.78 × 99,668.90
  4. Step 4: Simplify right side
    133,212.02x = 19,898,474,783.90
  5. Step 5: Solve for x
    x = 19,898,474,783.90/133,212.02
  6. Step 6: Final answer
    x = 149,374.47

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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.