Home / 129,815.36-194,724.60-45,577.64

Finding the Fourth Proportional to 129,815.36, 194,724.60 and 45,577.64

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Solution

The fourth proportional to 129,815.36, 194,724.60 and 45,577.64 is: 68,367.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,815.36 : 194,724.60 = 45,577.64 : x
  2. Step 2: Convert to fraction form
    129,815.36/194,724.60 = 45,577.64/x
  3. Step 3: Cross multiply
    129,815.36x = 194,724.60 × 45,577.64
  4. Step 4: Simplify right side
    129,815.36x = 8,875,087,717.94
  5. Step 5: Solve for x
    x = 8,875,087,717.94/129,815.36
  6. Step 6: Final answer
    x = 68,367.01

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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.