Home / 243,029.56-335,381.72-135,604.12

Finding the Fourth Proportional to 243,029.56, 335,381.72 and 135,604.12

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Solution

The fourth proportional to 243,029.56, 335,381.72 and 135,604.12 is: 187,134.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,029.56 : 335,381.72 = 135,604.12 : x
  2. Step 2: Convert to fraction form
    243,029.56/335,381.72 = 135,604.12/x
  3. Step 3: Cross multiply
    243,029.56x = 335,381.72 × 135,604.12
  4. Step 4: Simplify right side
    243,029.56x = 45,479,143,004.69
  5. Step 5: Solve for x
    x = 45,479,143,004.69/243,029.56
  6. Step 6: Final answer
    x = 187,134.20

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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.