Home / 129,551.12-194,287.45-45,295.58

Finding the Fourth Proportional to 129,551.12, 194,287.45 and 45,295.58

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Solution

The fourth proportional to 129,551.12, 194,287.45 and 45,295.58 is: 67,929.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,551.12 : 194,287.45 = 45,295.58 : x
  2. Step 2: Convert to fraction form
    129,551.12/194,287.45 = 45,295.58/x
  3. Step 3: Cross multiply
    129,551.12x = 194,287.45 × 45,295.58
  4. Step 4: Simplify right side
    129,551.12x = 8,800,363,106.95
  5. Step 5: Solve for x
    x = 8,800,363,106.95/129,551.12
  6. Step 6: Final answer
    x = 67,929.66

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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.