Home / 129,918.60-194,877.90-51,006.60

Finding the Fourth Proportional to 129,918.60, 194,877.90 and 51,006.60

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Solution

The fourth proportional to 129,918.60, 194,877.90 and 51,006.60 is: 76,509.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,918.60 : 194,877.90 = 51,006.60 : x
  2. Step 2: Convert to fraction form
    129,918.60/194,877.90 = 51,006.60/x
  3. Step 3: Cross multiply
    129,918.60x = 194,877.90 × 51,006.60
  4. Step 4: Simplify right side
    129,918.60x = 9,940,059,094.14
  5. Step 5: Solve for x
    x = 9,940,059,094.14/129,918.60
  6. Step 6: Final answer
    x = 76,509.90

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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.