Home / 189,936.12-284,799-77,695.16

Finding the Fourth Proportional to 189,936.12, 284,799 and 77,695.16

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Solution

The fourth proportional to 189,936.12, 284,799 and 77,695.16 is: 116,499.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,936.12 : 284,799 = 77,695.16 : x
  2. Step 2: Convert to fraction form
    189,936.12/284,799 = 77,695.16/x
  3. Step 3: Cross multiply
    189,936.12x = 284,799 × 77,695.16
  4. Step 4: Simplify right side
    189,936.12x = 22,127,503,872.84
  5. Step 5: Solve for x
    x = 22,127,503,872.84/189,936.12
  6. Step 6: Final answer
    x = 116,499.72

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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.