Home / 120,908.20-181,393.04-71,030.44

Finding the Fourth Proportional to 120,908.20, 181,393.04 and 71,030.44

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Solution

The fourth proportional to 120,908.20, 181,393.04 and 71,030.44 is: 106,563.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,908.20 : 181,393.04 = 71,030.44 : x
  2. Step 2: Convert to fraction form
    120,908.20/181,393.04 = 71,030.44/x
  3. Step 3: Cross multiply
    120,908.20x = 181,393.04 × 71,030.44
  4. Step 4: Simplify right side
    120,908.20x = 12,884,427,444.14
  5. Step 5: Solve for x
    x = 12,884,427,444.14/120,908.20
  6. Step 6: Final answer
    x = 106,563.72

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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.