Home / 106,156.71-146,342.30-74,226.51

Finding the Fourth Proportional to 106,156.71, 146,342.30 and 74,226.51

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Solution

The fourth proportional to 106,156.71, 146,342.30 and 74,226.51 is: 102,324.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,156.71 : 146,342.30 = 74,226.51 : x
  2. Step 2: Convert to fraction form
    106,156.71/146,342.30 = 74,226.51/x
  3. Step 3: Cross multiply
    106,156.71x = 146,342.30 × 74,226.51
  4. Step 4: Simplify right side
    106,156.71x = 10,862,477,823.24
  5. Step 5: Solve for x
    x = 10,862,477,823.24/106,156.71
  6. Step 6: Final answer
    x = 102,324.93

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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.