Home / 105,887.21-146,124.51-58,143.61

Finding the Fourth Proportional to 105,887.21, 146,124.51 and 58,143.61

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Solution

The fourth proportional to 105,887.21, 146,124.51 and 58,143.61 is: 80,238.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,887.21 : 146,124.51 = 58,143.61 : x
  2. Step 2: Convert to fraction form
    105,887.21/146,124.51 = 58,143.61/x
  3. Step 3: Cross multiply
    105,887.21x = 146,124.51 × 58,143.61
  4. Step 4: Simplify right side
    105,887.21x = 8,496,205,790.26
  5. Step 5: Solve for x
    x = 8,496,205,790.26/105,887.21
  6. Step 6: Final answer
    x = 80,238.26

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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.