Home / 260,124.43-390,217.90-91,609.94

Finding the Fourth Proportional to 260,124.43, 390,217.90 and 91,609.94

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Solution

The fourth proportional to 260,124.43, 390,217.90 and 91,609.94 is: 137,425.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,124.43 : 390,217.90 = 91,609.94 : x
  2. Step 2: Convert to fraction form
    260,124.43/390,217.90 = 91,609.94/x
  3. Step 3: Cross multiply
    260,124.43x = 390,217.90 × 91,609.94
  4. Step 4: Simplify right side
    260,124.43x = 35,747,838,405.93
  5. Step 5: Solve for x
    x = 35,747,838,405.93/260,124.43
  6. Step 6: Final answer
    x = 137,425.92

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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.