Home / 104,529.80-156,564.30-90,705.80

Finding the Fourth Proportional to 104,529.80, 156,564.30 and 90,705.80

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Solution

The fourth proportional to 104,529.80, 156,564.30 and 90,705.80 is: 135,858.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,529.80 : 156,564.30 = 90,705.80 : x
  2. Step 2: Convert to fraction form
    104,529.80/156,564.30 = 90,705.80/x
  3. Step 3: Cross multiply
    104,529.80x = 156,564.30 × 90,705.80
  4. Step 4: Simplify right side
    104,529.80x = 14,201,290,082.94
  5. Step 5: Solve for x
    x = 14,201,290,082.94/104,529.80
  6. Step 6: Final answer
    x = 135,858.77

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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.