Home / 115,629.60-173,329.20-53,191.20

Finding the Fourth Proportional to 115,629.60, 173,329.20 and 53,191.20

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Solution

The fourth proportional to 115,629.60, 173,329.20 and 53,191.20 is: 79,733.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,629.60 : 173,329.20 = 53,191.20 : x
  2. Step 2: Convert to fraction form
    115,629.60/173,329.20 = 53,191.20/x
  3. Step 3: Cross multiply
    115,629.60x = 173,329.20 × 53,191.20
  4. Step 4: Simplify right side
    115,629.60x = 9,219,588,143.04
  5. Step 5: Solve for x
    x = 9,219,588,143.04/115,629.60
  6. Step 6: Final answer
    x = 79,733.81

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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.