Home / 130,242.40-194,845.20-112,904.80

Finding the Fourth Proportional to 130,242.40, 194,845.20 and 112,904.80

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Solution

The fourth proportional to 130,242.40, 194,845.20 and 112,904.80 is: 168,907.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,242.40 : 194,845.20 = 112,904.80 : x
  2. Step 2: Convert to fraction form
    130,242.40/194,845.20 = 112,904.80/x
  3. Step 3: Cross multiply
    130,242.40x = 194,845.20 × 112,904.80
  4. Step 4: Simplify right side
    130,242.40x = 21,998,958,336.96
  5. Step 5: Solve for x
    x = 21,998,958,336.96/130,242.40
  6. Step 6: Final answer
    x = 168,907.81

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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.