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Finding the Fourth Proportional to 133,162.19, 183,763.81 and 72,732.97

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Solution

The fourth proportional to 133,162.19, 183,763.81 and 72,732.97 is: 100,371.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,162.19 : 183,763.81 = 72,732.97 : x
  2. Step 2: Convert to fraction form
    133,162.19/183,763.81 = 72,732.97/x
  3. Step 3: Cross multiply
    133,162.19x = 183,763.81 × 72,732.97
  4. Step 4: Simplify right side
    133,162.19x = 13,365,687,679.82
  5. Step 5: Solve for x
    x = 13,365,687,679.82/133,162.19
  6. Step 6: Final answer
    x = 100,371.49

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1.5x scale

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.