Home / 136,905.70-205,432.07-56,998.83

Finding the Fourth Proportional to 136,905.70, 205,432.07 and 56,998.83

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Solution

The fourth proportional to 136,905.70, 205,432.07 and 56,998.83 is: 85,528.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,905.70 : 205,432.07 = 56,998.83 : x
  2. Step 2: Convert to fraction form
    136,905.70/205,432.07 = 56,998.83/x
  3. Step 3: Cross multiply
    136,905.70x = 205,432.07 × 56,998.83
  4. Step 4: Simplify right side
    136,905.70x = 11,709,387,634.48
  5. Step 5: Solve for x
    x = 11,709,387,634.48/136,905.70
  6. Step 6: Final answer
    x = 85,528.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.