Home / 106,720.56-147,269.58-58,972.88

Finding the Fourth Proportional to 106,720.56, 147,269.58 and 58,972.88

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Solution

The fourth proportional to 106,720.56, 147,269.58 and 58,972.88 is: 81,379.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,720.56 : 147,269.58 = 58,972.88 : x
  2. Step 2: Convert to fraction form
    106,720.56/147,269.58 = 58,972.88/x
  3. Step 3: Cross multiply
    106,720.56x = 147,269.58 × 58,972.88
  4. Step 4: Simplify right side
    106,720.56x = 8,684,910,532.64
  5. Step 5: Solve for x
    x = 8,684,910,532.64/106,720.56
  6. Step 6: Final answer
    x = 81,379.92

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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.