Home / 115,730.44-173,315.37-80,091.91

Finding the Fourth Proportional to 115,730.44, 173,315.37 and 80,091.91

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Solution

The fourth proportional to 115,730.44, 173,315.37 and 80,091.91 is: 119,943.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,730.44 : 173,315.37 = 80,091.91 : x
  2. Step 2: Convert to fraction form
    115,730.44/173,315.37 = 80,091.91/x
  3. Step 3: Cross multiply
    115,730.44x = 173,315.37 × 80,091.91
  4. Step 4: Simplify right side
    115,730.44x = 13,881,159,015.66
  5. Step 5: Solve for x
    x = 13,881,159,015.66/115,730.44
  6. Step 6: Final answer
    x = 119,943.89

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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.