Home / 104,541.80-156,582.30-90,717.80

Finding the Fourth Proportional to 104,541.80, 156,582.30 and 90,717.80

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Solution

The fourth proportional to 104,541.80, 156,582.30 and 90,717.80 is: 135,876.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,541.80 : 156,582.30 = 90,717.80 : x
  2. Step 2: Convert to fraction form
    104,541.80/156,582.30 = 90,717.80/x
  3. Step 3: Cross multiply
    104,541.80x = 156,582.30 × 90,717.80
  4. Step 4: Simplify right side
    104,541.80x = 14,204,801,774.94
  5. Step 5: Solve for x
    x = 14,204,801,774.94/104,541.80
  6. Step 6: Final answer
    x = 135,876.77

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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.