Home / 120,901.40-181,352.10-103,016.60

Finding the Fourth Proportional to 120,901.40, 181,352.10 and 103,016.60

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Solution

The fourth proportional to 120,901.40, 181,352.10 and 103,016.60 is: 154,524.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,901.40 : 181,352.10 = 103,016.60 : x
  2. Step 2: Convert to fraction form
    120,901.40/181,352.10 = 103,016.60/x
  3. Step 3: Cross multiply
    120,901.40x = 181,352.10 × 103,016.60
  4. Step 4: Simplify right side
    120,901.40x = 18,682,276,744.86
  5. Step 5: Solve for x
    x = 18,682,276,744.86/120,901.40
  6. Step 6: Final answer
    x = 154,524.90

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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.