Home / 115,605.30-173,405.52-53,275.80

Finding the Fourth Proportional to 115,605.30, 173,405.52 and 53,275.80

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Solution

The fourth proportional to 115,605.30, 173,405.52 and 53,275.80 is: 79,912.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,605.30 : 173,405.52 = 53,275.80 : x
  2. Step 2: Convert to fraction form
    115,605.30/173,405.52 = 53,275.80/x
  3. Step 3: Cross multiply
    115,605.30x = 173,405.52 × 53,275.80
  4. Step 4: Simplify right side
    115,605.30x = 9,238,317,802.42
  5. Step 5: Solve for x
    x = 9,238,317,802.42/115,605.30
  6. Step 6: Final answer
    x = 79,912.58

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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.