Home / 111,593.07-154,032.57-66,278.43

Finding the Fourth Proportional to 111,593.07, 154,032.57 and 66,278.43

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Solution

The fourth proportional to 111,593.07, 154,032.57 and 66,278.43 is: 91,484.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,593.07 : 154,032.57 = 66,278.43 : x
  2. Step 2: Convert to fraction form
    111,593.07/154,032.57 = 66,278.43/x
  3. Step 3: Cross multiply
    111,593.07x = 154,032.57 × 66,278.43
  4. Step 4: Simplify right side
    111,593.07x = 10,209,036,908.47
  5. Step 5: Solve for x
    x = 10,209,036,908.47/111,593.07
  6. Step 6: Final answer
    x = 91,484.51

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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.