Home / 199,388.47-275,146.38-118,814.20

Finding the Fourth Proportional to 199,388.47, 275,146.38 and 118,814.20

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Solution

The fourth proportional to 199,388.47, 275,146.38 and 118,814.20 is: 163,957.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,388.47 : 275,146.38 = 118,814.20 : x
  2. Step 2: Convert to fraction form
    199,388.47/275,146.38 = 118,814.20/x
  3. Step 3: Cross multiply
    199,388.47x = 275,146.38 × 118,814.20
  4. Step 4: Simplify right side
    199,388.47x = 32,691,297,022.60
  5. Step 5: Solve for x
    x = 32,691,297,022.60/199,388.47
  6. Step 6: Final answer
    x = 163,957.81

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1.5x scale

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.