Home / 106,728.03-147,082.43-76,461.37

Finding the Fourth Proportional to 106,728.03, 147,082.43 and 76,461.37

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Solution

The fourth proportional to 106,728.03, 147,082.43 and 76,461.37 is: 105,371.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,728.03 : 147,082.43 = 76,461.37 : x
  2. Step 2: Convert to fraction form
    106,728.03/147,082.43 = 76,461.37/x
  3. Step 3: Cross multiply
    106,728.03x = 147,082.43 × 76,461.37
  4. Step 4: Simplify right side
    106,728.03x = 11,246,123,924.18
  5. Step 5: Solve for x
    x = 11,246,123,924.18/106,728.03
  6. Step 6: Final answer
    x = 105,371.79

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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.