Home / 118,619.68-178,007.28-43,741.12

Finding the Fourth Proportional to 118,619.68, 178,007.28 and 43,741.12

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Solution

The fourth proportional to 118,619.68, 178,007.28 and 43,741.12 is: 65,640.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,619.68 : 178,007.28 = 43,741.12 : x
  2. Step 2: Convert to fraction form
    118,619.68/178,007.28 = 43,741.12/x
  3. Step 3: Cross multiply
    118,619.68x = 178,007.28 × 43,741.12
  4. Step 4: Simplify right side
    118,619.68x = 7,786,237,795.35
  5. Step 5: Solve for x
    x = 7,786,237,795.35/118,619.68
  6. Step 6: Final answer
    x = 65,640.35

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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.