Home / 120,456.66-180,614.94-45,582.59

Finding the Fourth Proportional to 120,456.66, 180,614.94 and 45,582.59

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Solution

The fourth proportional to 120,456.66, 180,614.94 and 45,582.59 is: 68,347.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,456.66 : 180,614.94 = 45,582.59 : x
  2. Step 2: Convert to fraction form
    120,456.66/180,614.94 = 45,582.59/x
  3. Step 3: Cross multiply
    120,456.66x = 180,614.94 × 45,582.59
  4. Step 4: Simplify right side
    120,456.66x = 8,232,896,757.89
  5. Step 5: Solve for x
    x = 8,232,896,757.89/120,456.66
  6. Step 6: Final answer
    x = 68,347.38

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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.