Home / 118,921.50-178,382.25-30,175.47

Finding the Fourth Proportional to 118,921.50, 178,382.25 and 30,175.47

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Solution

The fourth proportional to 118,921.50, 178,382.25 and 30,175.47 is: 45,263.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,921.50 : 178,382.25 = 30,175.47 : x
  2. Step 2: Convert to fraction form
    118,921.50/178,382.25 = 30,175.47/x
  3. Step 3: Cross multiply
    118,921.50x = 178,382.25 × 30,175.47
  4. Step 4: Simplify right side
    118,921.50x = 5,382,768,233.41
  5. Step 5: Solve for x
    x = 5,382,768,233.41/118,921.50
  6. Step 6: Final answer
    x = 45,263.21

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1.5x scale

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.