Home / 106,740.72-147,301.20-58,991.04

Finding the Fourth Proportional to 106,740.72, 147,301.20 and 58,991.04

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Solution

The fourth proportional to 106,740.72, 147,301.20 and 58,991.04 is: 81,407.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,740.72 : 147,301.20 = 58,991.04 : x
  2. Step 2: Convert to fraction form
    106,740.72/147,301.20 = 58,991.04/x
  3. Step 3: Cross multiply
    106,740.72x = 147,301.20 × 58,991.04
  4. Step 4: Simplify right side
    106,740.72x = 8,689,450,981.25
  5. Step 5: Solve for x
    x = 8,689,450,981.25/106,740.72
  6. Step 6: Final answer
    x = 81,407.09

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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.