Home / 123,240.24-183,892.32-115,716.96

Finding the Fourth Proportional to 123,240.24, 183,892.32 and 115,716.96

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Solution

The fourth proportional to 123,240.24, 183,892.32 and 115,716.96 is: 172,666.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,240.24 : 183,892.32 = 115,716.96 : x
  2. Step 2: Convert to fraction form
    123,240.24/183,892.32 = 115,716.96/x
  3. Step 3: Cross multiply
    123,240.24x = 183,892.32 × 115,716.96
  4. Step 4: Simplify right side
    123,240.24x = 21,279,460,237.75
  5. Step 5: Solve for x
    x = 21,279,460,237.75/123,240.24
  6. Step 6: Final answer
    x = 172,666.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.