Home / 243,568.24-336,139.92-136,142.80

Finding the Fourth Proportional to 243,568.24, 336,139.92 and 136,142.80

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Solution

The fourth proportional to 243,568.24, 336,139.92 and 136,142.80 is: 187,885.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,568.24 : 336,139.92 = 136,142.80 : x
  2. Step 2: Convert to fraction form
    243,568.24/336,139.92 = 136,142.80/x
  3. Step 3: Cross multiply
    243,568.24x = 336,139.92 × 136,142.80
  4. Step 4: Simplify right side
    243,568.24x = 45,763,029,900.58
  5. Step 5: Solve for x
    x = 45,763,029,900.58/243,568.24
  6. Step 6: Final answer
    x = 187,885.87

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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.