Home / 206,459.13-309,588.45-121,093.23

Finding the Fourth Proportional to 206,459.13, 309,588.45 and 121,093.23

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Solution

The fourth proportional to 206,459.13, 309,588.45 and 121,093.23 is: 181,581.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,459.13 : 309,588.45 = 121,093.23 : x
  2. Step 2: Convert to fraction form
    206,459.13/309,588.45 = 121,093.23/x
  3. Step 3: Cross multiply
    206,459.13x = 309,588.45 × 121,093.23
  4. Step 4: Simplify right side
    206,459.13x = 37,489,065,381.19
  5. Step 5: Solve for x
    x = 37,489,065,381.19/206,459.13
  6. Step 6: Final answer
    x = 181,581.05

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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.