Home / 133,102.27-183,681.51-72,673.43

Finding the Fourth Proportional to 133,102.27, 183,681.51 and 72,673.43

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Solution

The fourth proportional to 133,102.27, 183,681.51 and 72,673.43 is: 100,289.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,102.27 : 183,681.51 = 72,673.43 : x
  2. Step 2: Convert to fraction form
    133,102.27/183,681.51 = 72,673.43/x
  3. Step 3: Cross multiply
    133,102.27x = 183,681.51 × 72,673.43
  4. Step 4: Simplify right side
    133,102.27x = 13,348,765,359.28
  5. Step 5: Solve for x
    x = 13,348,765,359.28/133,102.27
  6. Step 6: Final answer
    x = 100,289.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.