Home / 189,982.90-285,031.42-56,867.50

Finding the Fourth Proportional to 189,982.90, 285,031.42 and 56,867.50

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Solution

The fourth proportional to 189,982.90, 285,031.42 and 56,867.50 is: 85,318.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,982.90 : 285,031.42 = 56,867.50 : x
  2. Step 2: Convert to fraction form
    189,982.90/285,031.42 = 56,867.50/x
  3. Step 3: Cross multiply
    189,982.90x = 285,031.42 × 56,867.50
  4. Step 4: Simplify right side
    189,982.90x = 16,209,024,276.85
  5. Step 5: Solve for x
    x = 16,209,024,276.85/189,982.90
  6. Step 6: Final answer
    x = 85,318.33

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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.