Home / 243,621.17-336,191.61-136,201.20

Finding the Fourth Proportional to 243,621.17, 336,191.61 and 136,201.20

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Solution

The fourth proportional to 243,621.17, 336,191.61 and 136,201.20 is: 187,954.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,621.17 : 336,191.61 = 136,201.20 : x
  2. Step 2: Convert to fraction form
    243,621.17/336,191.61 = 136,201.20/x
  3. Step 3: Cross multiply
    243,621.17x = 336,191.61 × 136,201.20
  4. Step 4: Simplify right side
    243,621.17x = 45,789,699,961.97
  5. Step 5: Solve for x
    x = 45,789,699,961.97/243,621.17
  6. Step 6: Final answer
    x = 187,954.52

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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.