Home / 135,357.58-186,795.11-74,933.81

Finding the Fourth Proportional to 135,357.58, 186,795.11 and 74,933.81

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Solution

The fourth proportional to 135,357.58, 186,795.11 and 74,933.81 is: 103,409.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,357.58 : 186,795.11 = 74,933.81 : x
  2. Step 2: Convert to fraction form
    135,357.58/186,795.11 = 74,933.81/x
  3. Step 3: Cross multiply
    135,357.58x = 186,795.11 × 74,933.81
  4. Step 4: Simplify right side
    135,357.58x = 13,997,269,235.51
  5. Step 5: Solve for x
    x = 13,997,269,235.51/135,357.58
  6. Step 6: Final answer
    x = 103,409.57

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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.