Home / 289,523.25-434,178.09-99,935.19

Finding the Fourth Proportional to 289,523.25, 434,178.09 and 99,935.19

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Solution

The fourth proportional to 289,523.25, 434,178.09 and 99,935.19 is: 149,865.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,523.25 : 434,178.09 = 99,935.19 : x
  2. Step 2: Convert to fraction form
    289,523.25/434,178.09 = 99,935.19/x
  3. Step 3: Cross multiply
    289,523.25x = 434,178.09 × 99,935.19
  4. Step 4: Simplify right side
    289,523.25x = 43,389,669,917.99
  5. Step 5: Solve for x
    x = 43,389,669,917.99/289,523.25
  6. Step 6: Final answer
    x = 149,865.93

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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.