Home / 120,338.12-180,562.50-45,484.27

Finding the Fourth Proportional to 120,338.12, 180,562.50 and 45,484.27

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Solution

The fourth proportional to 120,338.12, 180,562.50 and 45,484.27 is: 68,247.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,338.12 : 180,562.50 = 45,484.27 : x
  2. Step 2: Convert to fraction form
    120,338.12/180,562.50 = 45,484.27/x
  3. Step 3: Cross multiply
    120,338.12x = 180,562.50 × 45,484.27
  4. Step 4: Simplify right side
    120,338.12x = 8,212,753,050.47
  5. Step 5: Solve for x
    x = 8,212,753,050.47/120,338.12
  6. Step 6: Final answer
    x = 68,247.31

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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.