Home / 243,621.56-336,200.15-136,197.47

Finding the Fourth Proportional to 243,621.56, 336,200.15 and 136,197.47

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Solution

The fourth proportional to 243,621.56, 336,200.15 and 136,197.47 is: 187,953.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,621.56 : 336,200.15 = 136,197.47 : x
  2. Step 2: Convert to fraction form
    243,621.56/336,200.15 = 136,197.47/x
  3. Step 3: Cross multiply
    243,621.56x = 336,200.15 × 136,197.47
  4. Step 4: Simplify right side
    243,621.56x = 45,789,609,843.62
  5. Step 5: Solve for x
    x = 45,789,609,843.62/243,621.56
  6. Step 6: Final answer
    x = 187,953.85

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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.