Home / 172,469.11-258,703.73-77,588.46

Finding the Fourth Proportional to 172,469.11, 258,703.73 and 77,588.46

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Solution

The fourth proportional to 172,469.11, 258,703.73 and 77,588.46 is: 116,382.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,469.11 : 258,703.73 = 77,588.46 : x
  2. Step 2: Convert to fraction form
    172,469.11/258,703.73 = 77,588.46/x
  3. Step 3: Cross multiply
    172,469.11x = 258,703.73 × 77,588.46
  4. Step 4: Simplify right side
    172,469.11x = 20,072,424,459.74
  5. Step 5: Solve for x
    x = 20,072,424,459.74/172,469.11
  6. Step 6: Final answer
    x = 116,382.72

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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.