Home / 132,738.84-183,178.42-72,309.30

Finding the Fourth Proportional to 132,738.84, 183,178.42 and 72,309.30

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Solution

The fourth proportional to 132,738.84, 183,178.42 and 72,309.30 is: 99,786.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,738.84 : 183,178.42 = 72,309.30 : x
  2. Step 2: Convert to fraction form
    132,738.84/183,178.42 = 72,309.30/x
  3. Step 3: Cross multiply
    132,738.84x = 183,178.42 × 72,309.30
  4. Step 4: Simplify right side
    132,738.84x = 13,245,503,325.31
  5. Step 5: Solve for x
    x = 13,245,503,325.31/132,738.84
  6. Step 6: Final answer
    x = 99,786.19

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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.