Home / 189,863.28-284,794.86-56,739.18

Finding the Fourth Proportional to 189,863.28, 284,794.86 and 56,739.18

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Solution

The fourth proportional to 189,863.28, 284,794.86 and 56,739.18 is: 85,108.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,863.28 : 284,794.86 = 56,739.18 : x
  2. Step 2: Convert to fraction form
    189,863.28/284,794.86 = 56,739.18/x
  3. Step 3: Cross multiply
    189,863.28x = 284,794.86 × 56,739.18
  4. Step 4: Simplify right side
    189,863.28x = 16,159,026,824.61
  5. Step 5: Solve for x
    x = 16,159,026,824.61/189,863.28
  6. Step 6: Final answer
    x = 85,108.75

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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.