Home / 115,743.20-173,672.40-45,624.80

Finding the Fourth Proportional to 115,743.20, 173,672.40 and 45,624.80

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Solution

The fourth proportional to 115,743.20, 173,672.40 and 45,624.80 is: 68,459.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,743.20 : 173,672.40 = 45,624.80 : x
  2. Step 2: Convert to fraction form
    115,743.20/173,672.40 = 45,624.80/x
  3. Step 3: Cross multiply
    115,743.20x = 173,672.40 × 45,624.80
  4. Step 4: Simplify right side
    115,743.20x = 7,923,768,515.52
  5. Step 5: Solve for x
    x = 7,923,768,515.52/115,743.20
  6. Step 6: Final answer
    x = 68,459.91

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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.