Home / 260,060.37-390,121.82-91,545.69

Finding the Fourth Proportional to 260,060.37, 390,121.82 and 91,545.69

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Solution

The fourth proportional to 260,060.37, 390,121.82 and 91,545.69 is: 137,329.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,060.37 : 390,121.82 = 91,545.69 : x
  2. Step 2: Convert to fraction form
    260,060.37/390,121.82 = 91,545.69/x
  3. Step 3: Cross multiply
    260,060.37x = 390,121.82 × 91,545.69
  4. Step 4: Simplify right side
    260,060.37x = 35,713,972,544.48
  5. Step 5: Solve for x
    x = 35,713,972,544.48/260,060.37
  6. Step 6: Final answer
    x = 137,329.55

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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.