Home / 135,792.49-187,416.05-75,382.48

Finding the Fourth Proportional to 135,792.49, 187,416.05 and 75,382.48

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Solution

The fourth proportional to 135,792.49, 187,416.05 and 75,382.48 is: 104,040.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,792.49 : 187,416.05 = 75,382.48 : x
  2. Step 2: Convert to fraction form
    135,792.49/187,416.05 = 75,382.48/x
  3. Step 3: Cross multiply
    135,792.49x = 187,416.05 × 75,382.48
  4. Step 4: Simplify right side
    135,792.49x = 14,127,886,640.80
  5. Step 5: Solve for x
    x = 14,127,886,640.80/135,792.49
  6. Step 6: Final answer
    x = 104,040.26

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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.