Home / 135,167.90-186,524.16-74,734.91

Finding the Fourth Proportional to 135,167.90, 186,524.16 and 74,734.91

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Solution

The fourth proportional to 135,167.90, 186,524.16 and 74,734.91 is: 103,130.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,167.90 : 186,524.16 = 74,734.91 : x
  2. Step 2: Convert to fraction form
    135,167.90/186,524.16 = 74,734.91/x
  3. Step 3: Cross multiply
    135,167.90x = 186,524.16 × 74,734.91
  4. Step 4: Simplify right side
    135,167.90x = 13,939,866,310.43
  5. Step 5: Solve for x
    x = 13,939,866,310.43/135,167.90
  6. Step 6: Final answer
    x = 103,130.01

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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.