Home / 135,175.09-186,539.67-74,744.40

Finding the Fourth Proportional to 135,175.09, 186,539.67 and 74,744.40

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Solution

The fourth proportional to 135,175.09, 186,539.67 and 74,744.40 is: 103,146.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,175.09 : 186,539.67 = 74,744.40 : x
  2. Step 2: Convert to fraction form
    135,175.09/186,539.67 = 74,744.40/x
  3. Step 3: Cross multiply
    135,175.09x = 186,539.67 × 74,744.40
  4. Step 4: Simplify right side
    135,175.09x = 13,942,795,710.35
  5. Step 5: Solve for x
    x = 13,942,795,710.35/135,175.09
  6. Step 6: Final answer
    x = 103,146.20

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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.