Home / 129,917.70-194,779.35-70,820.10

Finding the Fourth Proportional to 129,917.70, 194,779.35 and 70,820.10

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Solution

The fourth proportional to 129,917.70, 194,779.35 and 70,820.10 is: 106,177.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,917.70 : 194,779.35 = 70,820.10 : x
  2. Step 2: Convert to fraction form
    129,917.70/194,779.35 = 70,820.10/x
  3. Step 3: Cross multiply
    129,917.70x = 194,779.35 × 70,820.10
  4. Step 4: Simplify right side
    129,917.70x = 13,794,293,044.94
  5. Step 5: Solve for x
    x = 13,794,293,044.94/129,917.70
  6. Step 6: Final answer
    x = 106,177.16

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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.