Home / 132,972.70-183,498.68-72,543.33

Finding the Fourth Proportional to 132,972.70, 183,498.68 and 72,543.33

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Solution

The fourth proportional to 132,972.70, 183,498.68 and 72,543.33 is: 100,107.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,972.70 : 183,498.68 = 72,543.33 : x
  2. Step 2: Convert to fraction form
    132,972.70/183,498.68 = 72,543.33/x
  3. Step 3: Cross multiply
    132,972.70x = 183,498.68 × 72,543.33
  4. Step 4: Simplify right side
    132,972.70x = 13,311,605,297.80
  5. Step 5: Solve for x
    x = 13,311,605,297.80/132,972.70
  6. Step 6: Final answer
    x = 100,107.81

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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.