Home / 115,785.40-173,634.90-45,650.20

Finding the Fourth Proportional to 115,785.40, 173,634.90 and 45,650.20

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Solution

The fourth proportional to 115,785.40, 173,634.90 and 45,650.20 is: 68,458.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,785.40 : 173,634.90 = 45,650.20 : x
  2. Step 2: Convert to fraction form
    115,785.40/173,634.90 = 45,650.20/x
  3. Step 3: Cross multiply
    115,785.40x = 173,634.90 × 45,650.20
  4. Step 4: Simplify right side
    115,785.40x = 7,926,467,911.98
  5. Step 5: Solve for x
    x = 7,926,467,911.98/115,785.40
  6. Step 6: Final answer
    x = 68,458.27

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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.