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Finding the Fourth Proportional to 80,173.00, 120,223.95 and 42,726.09

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Solution

The fourth proportional to 80,173.00, 120,223.95 and 42,726.09 is: 64,070.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,173.00 : 120,223.95 = 42,726.09 : x
  2. Step 2: Convert to fraction form
    80,173.00/120,223.95 = 42,726.09/x
  3. Step 3: Cross multiply
    80,173.00x = 120,223.95 × 42,726.09
  4. Step 4: Simplify right side
    80,173.00x = 5,136,699,147.63
  5. Step 5: Solve for x
    x = 5,136,699,147.63/80,173.00
  6. Step 6: Final answer
    x = 64,070.19

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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.