Home / 203,685.74-281,120.10-118,802.80

Finding the Fourth Proportional to 203,685.74, 281,120.10 and 118,802.80

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Solution

The fourth proportional to 203,685.74, 281,120.10 and 118,802.80 is: 163,967.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,685.74 : 281,120.10 = 118,802.80 : x
  2. Step 2: Convert to fraction form
    203,685.74/281,120.10 = 118,802.80/x
  3. Step 3: Cross multiply
    203,685.74x = 281,120.10 × 118,802.80
  4. Step 4: Simplify right side
    203,685.74x = 33,397,853,610.68
  5. Step 5: Solve for x
    x = 33,397,853,610.68/203,685.74
  6. Step 6: Final answer
    x = 163,967.56

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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.