Home / 132,672.78-183,082.32-72,243.18

Finding the Fourth Proportional to 132,672.78, 183,082.32 and 72,243.18

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Solution

The fourth proportional to 132,672.78, 183,082.32 and 72,243.18 is: 99,692.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,672.78 : 183,082.32 = 72,243.18 : x
  2. Step 2: Convert to fraction form
    132,672.78/183,082.32 = 72,243.18/x
  3. Step 3: Cross multiply
    132,672.78x = 183,082.32 × 72,243.18
  4. Step 4: Simplify right side
    132,672.78x = 13,226,448,998.58
  5. Step 5: Solve for x
    x = 13,226,448,998.58/132,672.78
  6. Step 6: Final answer
    x = 99,692.26

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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.