Home / 102,027.78-140,797.71-56,705.04

Finding the Fourth Proportional to 102,027.78, 140,797.71 and 56,705.04

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Solution

The fourth proportional to 102,027.78, 140,797.71 and 56,705.04 is: 78,252.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,027.78 : 140,797.71 = 56,705.04 : x
  2. Step 2: Convert to fraction form
    102,027.78/140,797.71 = 56,705.04/x
  3. Step 3: Cross multiply
    102,027.78x = 140,797.71 × 56,705.04
  4. Step 4: Simplify right side
    102,027.78x = 7,983,939,777.46
  5. Step 5: Solve for x
    x = 7,983,939,777.46/102,027.78
  6. Step 6: Final answer
    x = 78,252.61

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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.