Home / 105,888.21-146,125.89-58,144.61

Finding the Fourth Proportional to 105,888.21, 146,125.89 and 58,144.61

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Solution

The fourth proportional to 105,888.21, 146,125.89 and 58,144.61 is: 80,239.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,888.21 : 146,125.89 = 58,144.61 : x
  2. Step 2: Convert to fraction form
    105,888.21/146,125.89 = 58,144.61/x
  3. Step 3: Cross multiply
    105,888.21x = 146,125.89 × 58,144.61
  4. Step 4: Simplify right side
    105,888.21x = 8,496,432,154.32
  5. Step 5: Solve for x
    x = 8,496,432,154.32/105,888.21
  6. Step 6: Final answer
    x = 80,239.64

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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.