Home / 104,302.73-156,080.24-90,311.39

Finding the Fourth Proportional to 104,302.73, 156,080.24 and 90,311.39

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Solution

The fourth proportional to 104,302.73, 156,080.24 and 90,311.39 is: 135,143.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,302.73 : 156,080.24 = 90,311.39 : x
  2. Step 2: Convert to fraction form
    104,302.73/156,080.24 = 90,311.39/x
  3. Step 3: Cross multiply
    104,302.73x = 156,080.24 × 90,311.39
  4. Step 4: Simplify right side
    104,302.73x = 14,095,822,193.98
  5. Step 5: Solve for x
    x = 14,095,822,193.98/104,302.73
  6. Step 6: Final answer
    x = 135,143.37

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1.5x scale

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.