Home / 243,739.80-336,358.56-136,308.60

Finding the Fourth Proportional to 243,739.80, 336,358.56 and 136,308.60

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Solution

The fourth proportional to 243,739.80, 336,358.56 and 136,308.60 is: 188,104.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,739.80 : 336,358.56 = 136,308.60 : x
  2. Step 2: Convert to fraction form
    243,739.80/336,358.56 = 136,308.60/x
  3. Step 3: Cross multiply
    243,739.80x = 336,358.56 × 136,308.60
  4. Step 4: Simplify right side
    243,739.80x = 45,848,564,411.62
  5. Step 5: Solve for x
    x = 45,848,564,411.62/243,739.80
  6. Step 6: Final answer
    x = 188,104.55

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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.