Home / 105,988.20-146,262.05-58,240.53

Finding the Fourth Proportional to 105,988.20, 146,262.05 and 58,240.53

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Solution

The fourth proportional to 105,988.20, 146,262.05 and 58,240.53 is: 80,371.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,988.20 : 146,262.05 = 58,240.53 : x
  2. Step 2: Convert to fraction form
    105,988.20/146,262.05 = 58,240.53/x
  3. Step 3: Cross multiply
    105,988.20x = 146,262.05 × 58,240.53
  4. Step 4: Simplify right side
    105,988.20x = 8,518,379,019.68
  5. Step 5: Solve for x
    x = 8,518,379,019.68/105,988.20
  6. Step 6: Final answer
    x = 80,371.01

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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.