Home / 145,589.24-200,911.02-81,922.04

Finding the Fourth Proportional to 145,589.24, 200,911.02 and 81,922.04

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Solution

The fourth proportional to 145,589.24, 200,911.02 and 81,922.04 is: 113,051.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,589.24 : 200,911.02 = 81,922.04 : x
  2. Step 2: Convert to fraction form
    145,589.24/200,911.02 = 81,922.04/x
  3. Step 3: Cross multiply
    145,589.24x = 200,911.02 × 81,922.04
  4. Step 4: Simplify right side
    145,589.24x = 16,459,040,616.88
  5. Step 5: Solve for x
    x = 16,459,040,616.88/145,589.24
  6. Step 6: Final answer
    x = 113,051.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.