Home / 105,822.20-146,038.84-58,077.28

Finding the Fourth Proportional to 105,822.20, 146,038.84 and 58,077.28

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Solution

The fourth proportional to 105,822.20, 146,038.84 and 58,077.28 is: 80,148.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,822.20 : 146,038.84 = 58,077.28 : x
  2. Step 2: Convert to fraction form
    105,822.20/146,038.84 = 58,077.28/x
  3. Step 3: Cross multiply
    105,822.20x = 146,038.84 × 58,077.28
  4. Step 4: Simplify right side
    105,822.20x = 8,481,538,601.56
  5. Step 5: Solve for x
    x = 8,481,538,601.56/105,822.20
  6. Step 6: Final answer
    x = 80,148.95

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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.