Home / 105,820.16-146,033.60-58,077.95

Finding the Fourth Proportional to 105,820.16, 146,033.60 and 58,077.95

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Solution

The fourth proportional to 105,820.16, 146,033.60 and 58,077.95 is: 80,148.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,820.16 : 146,033.60 = 58,077.95 : x
  2. Step 2: Convert to fraction form
    105,820.16/146,033.60 = 58,077.95/x
  3. Step 3: Cross multiply
    105,820.16x = 146,033.60 × 58,077.95
  4. Step 4: Simplify right side
    105,820.16x = 8,481,331,098.56
  5. Step 5: Solve for x
    x = 8,481,331,098.56/105,820.16
  6. Step 6: Final answer
    x = 80,148.54

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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.