Home / 129,701.20-194,457.28-87,476.44

Finding the Fourth Proportional to 129,701.20, 194,457.28 and 87,476.44

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Solution

The fourth proportional to 129,701.20, 194,457.28 and 87,476.44 is: 131,150.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,701.20 : 194,457.28 = 87,476.44 : x
  2. Step 2: Convert to fraction form
    129,701.20/194,457.28 = 87,476.44/x
  3. Step 3: Cross multiply
    129,701.20x = 194,457.28 × 87,476.44
  4. Step 4: Simplify right side
    129,701.20x = 17,010,430,586.48
  5. Step 5: Solve for x
    x = 17,010,430,586.48/129,701.20
  6. Step 6: Final answer
    x = 131,150.91

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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.