Home / 120,724.20-181,232.10-119,849.40

Finding the Fourth Proportional to 120,724.20, 181,232.10 and 119,849.40

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Solution

The fourth proportional to 120,724.20, 181,232.10 and 119,849.40 is: 179,918.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,724.20 : 181,232.10 = 119,849.40 : x
  2. Step 2: Convert to fraction form
    120,724.20/181,232.10 = 119,849.40/x
  3. Step 3: Cross multiply
    120,724.20x = 181,232.10 × 119,849.40
  4. Step 4: Simplify right side
    120,724.20x = 21,720,558,445.74
  5. Step 5: Solve for x
    x = 21,720,558,445.74/120,724.20
  6. Step 6: Final answer
    x = 179,918.84

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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.