Home / 189,979.90-285,026.91-56,864.50

Finding the Fourth Proportional to 189,979.90, 285,026.91 and 56,864.50

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Solution

The fourth proportional to 189,979.90, 285,026.91 and 56,864.50 is: 85,313.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,979.90 : 285,026.91 = 56,864.50 : x
  2. Step 2: Convert to fraction form
    189,979.90/285,026.91 = 56,864.50/x
  3. Step 3: Cross multiply
    189,979.90x = 285,026.91 × 56,864.50
  4. Step 4: Simplify right side
    189,979.90x = 16,207,912,723.70
  5. Step 5: Solve for x
    x = 16,207,912,723.70/189,979.90
  6. Step 6: Final answer
    x = 85,313.83

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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.