Home / 111,327.68-153,655.44-102,361.04

Finding the Fourth Proportional to 111,327.68, 153,655.44 and 102,361.04

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Solution

The fourth proportional to 111,327.68, 153,655.44 and 102,361.04 is: 141,279.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,327.68 : 153,655.44 = 102,361.04 : x
  2. Step 2: Convert to fraction form
    111,327.68/153,655.44 = 102,361.04/x
  3. Step 3: Cross multiply
    111,327.68x = 153,655.44 × 102,361.04
  4. Step 4: Simplify right side
    111,327.68x = 15,728,330,640.06
  5. Step 5: Solve for x
    x = 15,728,330,640.06/111,327.68
  6. Step 6: Final answer
    x = 141,279.60

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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.