Home / 115,927.20-173,948.40-45,808.80

Finding the Fourth Proportional to 115,927.20, 173,948.40 and 45,808.80

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Solution

The fourth proportional to 115,927.20, 173,948.40 and 45,808.80 is: 68,735.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,927.20 : 173,948.40 = 45,808.80 : x
  2. Step 2: Convert to fraction form
    115,927.20/173,948.40 = 45,808.80/x
  3. Step 3: Cross multiply
    115,927.20x = 173,948.40 × 45,808.80
  4. Step 4: Simplify right side
    115,927.20x = 7,968,367,465.92
  5. Step 5: Solve for x
    x = 7,968,367,465.92/115,927.20
  6. Step 6: Final answer
    x = 68,735.96

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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.