Home / 260,119.03-390,209.81-91,604.53

Finding the Fourth Proportional to 260,119.03, 390,209.81 and 91,604.53

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Solution

The fourth proportional to 260,119.03, 390,209.81 and 91,604.53 is: 137,417.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,119.03 : 390,209.81 = 91,604.53 : x
  2. Step 2: Convert to fraction form
    260,119.03/390,209.81 = 91,604.53/x
  3. Step 3: Cross multiply
    260,119.03x = 390,209.81 × 91,604.53
  4. Step 4: Simplify right side
    260,119.03x = 35,744,986,246.44
  5. Step 5: Solve for x
    x = 35,744,986,246.44/260,119.03
  6. Step 6: Final answer
    x = 137,417.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.