Home / 135,352.59-186,788.21-74,928.81

Finding the Fourth Proportional to 135,352.59, 186,788.21 and 74,928.81

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Solution

The fourth proportional to 135,352.59, 186,788.21 and 74,928.81 is: 103,402.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,352.59 : 186,788.21 = 74,928.81 : x
  2. Step 2: Convert to fraction form
    135,352.59/186,788.21 = 74,928.81/x
  3. Step 3: Cross multiply
    135,352.59x = 186,788.21 × 74,928.81
  4. Step 4: Simplify right side
    135,352.59x = 13,995,818,297.33
  5. Step 5: Solve for x
    x = 13,995,818,297.33/135,352.59
  6. Step 6: Final answer
    x = 103,402.66

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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.