Home / 260,125.43-390,219.40-91,610.94

Finding the Fourth Proportional to 260,125.43, 390,219.40 and 91,610.94

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Solution

The fourth proportional to 260,125.43, 390,219.40 and 91,610.94 is: 137,427.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,125.43 : 390,219.40 = 91,610.94 : x
  2. Step 2: Convert to fraction form
    260,125.43/390,219.40 = 91,610.94/x
  3. Step 3: Cross multiply
    260,125.43x = 390,219.40 × 91,610.94
  4. Step 4: Simplify right side
    260,125.43x = 35,748,366,040.24
  5. Step 5: Solve for x
    x = 35,748,366,040.24/260,125.43
  6. Step 6: Final answer
    x = 137,427.42

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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.