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Finding the Fourth Proportional to 133,076.71, 199,472.91 and 66,385.36

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Solution

The fourth proportional to 133,076.71, 199,472.91 and 66,385.36 is: 99,507.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,076.71 : 199,472.91 = 66,385.36 : x
  2. Step 2: Convert to fraction form
    133,076.71/199,472.91 = 66,385.36/x
  3. Step 3: Cross multiply
    133,076.71x = 199,472.91 × 66,385.36
  4. Step 4: Simplify right side
    133,076.71x = 13,242,080,940.60
  5. Step 5: Solve for x
    x = 13,242,080,940.60/133,076.71
  6. Step 6: Final answer
    x = 99,507.13

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1.5x scale

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.