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Finding the Fourth Proportional to 108,033.80, 162,050.70 and 72,782.60

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Solution

The fourth proportional to 108,033.80, 162,050.70 and 72,782.60 is: 109,173.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,033.80 : 162,050.70 = 72,782.60 : x
  2. Step 2: Convert to fraction form
    108,033.80/162,050.70 = 72,782.60/x
  3. Step 3: Cross multiply
    108,033.80x = 162,050.70 × 72,782.60
  4. Step 4: Simplify right side
    108,033.80x = 11,794,471,277.82
  5. Step 5: Solve for x
    x = 11,794,471,277.82/108,033.80
  6. Step 6: Final answer
    x = 109,173.90

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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.