Home / 106,428.30-146,872.21-58,029.84

Finding the Fourth Proportional to 106,428.30, 146,872.21 and 58,029.84

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Solution

The fourth proportional to 106,428.30, 146,872.21 and 58,029.84 is: 80,081.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,428.30 : 146,872.21 = 58,029.84 : x
  2. Step 2: Convert to fraction form
    106,428.30/146,872.21 = 58,029.84/x
  3. Step 3: Cross multiply
    106,428.30x = 146,872.21 × 58,029.84
  4. Step 4: Simplify right side
    106,428.30x = 8,522,971,386.76
  5. Step 5: Solve for x
    x = 8,522,971,386.76/106,428.30
  6. Step 6: Final answer
    x = 80,081.81

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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.