Home / 243,986.64-336,624.84-136,539.60

Finding the Fourth Proportional to 243,986.64, 336,624.84 and 136,539.60

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Solution

The fourth proportional to 243,986.64, 336,624.84 and 136,539.60 is: 188,381.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,986.64 : 336,624.84 = 136,539.60 : x
  2. Step 2: Convert to fraction form
    243,986.64/336,624.84 = 136,539.60/x
  3. Step 3: Cross multiply
    243,986.64x = 336,624.84 × 136,539.60
  4. Step 4: Simplify right side
    243,986.64x = 45,962,621,003.66
  5. Step 5: Solve for x
    x = 45,962,621,003.66/243,986.64
  6. Step 6: Final answer
    x = 188,381.71

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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.