Home / 135,167.20-186,522.75-74,733.10

Finding the Fourth Proportional to 135,167.20, 186,522.75 and 74,733.10

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Solution

The fourth proportional to 135,167.20, 186,522.75 and 74,733.10 is: 103,127.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,167.20 : 186,522.75 = 74,733.10 : x
  2. Step 2: Convert to fraction form
    135,167.20/186,522.75 = 74,733.10/x
  3. Step 3: Cross multiply
    135,167.20x = 186,522.75 × 74,733.10
  4. Step 4: Simplify right side
    135,167.20x = 13,939,422,861.72
  5. Step 5: Solve for x
    x = 13,939,422,861.72/135,167.20
  6. Step 6: Final answer
    x = 103,127.26

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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.