Home / 102,395.43-141,305.36-57,072.92

Finding the Fourth Proportional to 102,395.43, 141,305.36 and 57,072.92

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Solution

The fourth proportional to 102,395.43, 141,305.36 and 57,072.92 is: 78,760.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,395.43 : 141,305.36 = 57,072.92 : x
  2. Step 2: Convert to fraction form
    102,395.43/141,305.36 = 57,072.92/x
  3. Step 3: Cross multiply
    102,395.43x = 141,305.36 × 57,072.92
  4. Step 4: Simplify right side
    102,395.43x = 8,064,708,514.96
  5. Step 5: Solve for x
    x = 8,064,708,514.96/102,395.43
  6. Step 6: Final answer
    x = 78,760.43

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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.