Home / 189,526.82-284,291.16-77,208.12

Finding the Fourth Proportional to 189,526.82, 284,291.16 and 77,208.12

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Solution

The fourth proportional to 189,526.82, 284,291.16 and 77,208.12 is: 115,812.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,526.82 : 284,291.16 = 77,208.12 : x
  2. Step 2: Convert to fraction form
    189,526.82/284,291.16 = 77,208.12/x
  3. Step 3: Cross multiply
    189,526.82x = 284,291.16 × 77,208.12
  4. Step 4: Simplify right side
    189,526.82x = 21,949,585,996.22
  5. Step 5: Solve for x
    x = 21,949,585,996.22/189,526.82
  6. Step 6: Final answer
    x = 115,812.56

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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.