Home / 135,175.15-186,539.76-74,744.47

Finding the Fourth Proportional to 135,175.15, 186,539.76 and 74,744.47

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Solution

The fourth proportional to 135,175.15, 186,539.76 and 74,744.47 is: 103,146.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,175.15 : 186,539.76 = 74,744.47 : x
  2. Step 2: Convert to fraction form
    135,175.15/186,539.76 = 74,744.47/x
  3. Step 3: Cross multiply
    135,175.15x = 186,539.76 × 74,744.47
  4. Step 4: Simplify right side
    135,175.15x = 13,942,815,728.30
  5. Step 5: Solve for x
    x = 13,942,815,728.30/135,175.15
  6. Step 6: Final answer
    x = 103,146.30

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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.