Home / 140,821.18-211,241.49-40,982.20

Finding the Fourth Proportional to 140,821.18, 211,241.49 and 40,982.20

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Solution

The fourth proportional to 140,821.18, 211,241.49 and 40,982.20 is: 61,476.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,821.18 : 211,241.49 = 40,982.20 : x
  2. Step 2: Convert to fraction form
    140,821.18/211,241.49 = 40,982.20/x
  3. Step 3: Cross multiply
    140,821.18x = 211,241.49 × 40,982.20
  4. Step 4: Simplify right side
    140,821.18x = 8,657,140,991.48
  5. Step 5: Solve for x
    x = 8,657,140,991.48/140,821.18
  6. Step 6: Final answer
    x = 61,476.13

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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.