Home / 105,794.45-145,991.36-58,046.78

Finding the Fourth Proportional to 105,794.45, 145,991.36 and 58,046.78

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Solution

The fourth proportional to 105,794.45, 145,991.36 and 58,046.78 is: 80,101.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,794.45 : 145,991.36 = 58,046.78 : x
  2. Step 2: Convert to fraction form
    105,794.45/145,991.36 = 58,046.78/x
  3. Step 3: Cross multiply
    105,794.45x = 145,991.36 × 58,046.78
  4. Step 4: Simplify right side
    105,794.45x = 8,474,328,044.71
  5. Step 5: Solve for x
    x = 8,474,328,044.71/105,794.45
  6. Step 6: Final answer
    x = 80,101.82

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1.5x scale

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.