Home / 109,357.84-164,035.32-30,472.48

Finding the Fourth Proportional to 109,357.84, 164,035.32 and 30,472.48

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Solution

The fourth proportional to 109,357.84, 164,035.32 and 30,472.48 is: 45,708.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,357.84 : 164,035.32 = 30,472.48 : x
  2. Step 2: Convert to fraction form
    109,357.84/164,035.32 = 30,472.48/x
  3. Step 3: Cross multiply
    109,357.84x = 164,035.32 × 30,472.48
  4. Step 4: Simplify right side
    109,357.84x = 4,998,563,007.99
  5. Step 5: Solve for x
    x = 4,998,563,007.99/109,357.84
  6. Step 6: Final answer
    x = 45,708.32

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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.