Home / 140,723.30-211,070.18-74,136.62

Finding the Fourth Proportional to 140,723.30, 211,070.18 and 74,136.62

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Solution

The fourth proportional to 140,723.30, 211,070.18 and 74,136.62 is: 111,197.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,723.30 : 211,070.18 = 74,136.62 : x
  2. Step 2: Convert to fraction form
    140,723.30/211,070.18 = 74,136.62/x
  3. Step 3: Cross multiply
    140,723.30x = 211,070.18 × 74,136.62
  4. Step 4: Simplify right side
    140,723.30x = 15,648,029,727.99
  5. Step 5: Solve for x
    x = 15,648,029,727.99/140,723.30
  6. Step 6: Final answer
    x = 111,197.15

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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.