Home / 123,767.13-170,492.54-105,558.33

Finding the Fourth Proportional to 123,767.13, 170,492.54 and 105,558.33

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Solution

The fourth proportional to 123,767.13, 170,492.54 and 105,558.33 is: 145,409.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,767.13 : 170,492.54 = 105,558.33 : x
  2. Step 2: Convert to fraction form
    123,767.13/170,492.54 = 105,558.33/x
  3. Step 3: Cross multiply
    123,767.13x = 170,492.54 × 105,558.33
  4. Step 4: Simplify right side
    123,767.13x = 17,996,907,272.07
  5. Step 5: Solve for x
    x = 17,996,907,272.07/123,767.13
  6. Step 6: Final answer
    x = 145,409.43

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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.