Home / 123,152.30-169,950.09-66,563.68

Finding the Fourth Proportional to 123,152.30, 169,950.09 and 66,563.68

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Solution

The fourth proportional to 123,152.30, 169,950.09 and 66,563.68 is: 91,857.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,152.30 : 169,950.09 = 66,563.68 : x
  2. Step 2: Convert to fraction form
    123,152.30/169,950.09 = 66,563.68/x
  3. Step 3: Cross multiply
    123,152.30x = 169,950.09 × 66,563.68
  4. Step 4: Simplify right side
    123,152.30x = 11,312,503,550.13
  5. Step 5: Solve for x
    x = 11,312,503,550.13/123,152.30
  6. Step 6: Final answer
    x = 91,857.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.