Home / 131,324.73-181,220.70-77,614.75

Finding the Fourth Proportional to 131,324.73, 181,220.70 and 77,614.75

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Solution

The fourth proportional to 131,324.73, 181,220.70 and 77,614.75 is: 107,103.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,324.73 : 181,220.70 = 77,614.75 : x
  2. Step 2: Convert to fraction form
    131,324.73/181,220.70 = 77,614.75/x
  3. Step 3: Cross multiply
    131,324.73x = 181,220.70 × 77,614.75
  4. Step 4: Simplify right side
    131,324.73x = 14,065,399,325.33
  5. Step 5: Solve for x
    x = 14,065,399,325.33/131,324.73
  6. Step 6: Final answer
    x = 107,103.97

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1.5x scale

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.