Home / 135,252.32-186,653.70-74,821.92

Finding the Fourth Proportional to 135,252.32, 186,653.70 and 74,821.92

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Solution

The fourth proportional to 135,252.32, 186,653.70 and 74,821.92 is: 103,257.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,252.32 : 186,653.70 = 74,821.92 : x
  2. Step 2: Convert to fraction form
    135,252.32/186,653.70 = 74,821.92/x
  3. Step 3: Cross multiply
    135,252.32x = 186,653.70 × 74,821.92
  4. Step 4: Simplify right side
    135,252.32x = 13,965,788,209.10
  5. Step 5: Solve for x
    x = 13,965,788,209.10/135,252.32
  6. Step 6: Final answer
    x = 103,257.29

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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.