Home / 191,462.20-287,346.39-86,289.37

Finding the Fourth Proportional to 191,462.20, 287,346.39 and 86,289.37

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Solution

The fourth proportional to 191,462.20, 287,346.39 and 86,289.37 is: 129,503.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,462.20 : 287,346.39 = 86,289.37 : x
  2. Step 2: Convert to fraction form
    191,462.20/287,346.39 = 86,289.37/x
  3. Step 3: Cross multiply
    191,462.20x = 287,346.39 × 86,289.37
  4. Step 4: Simplify right side
    191,462.20x = 24,794,937,922.92
  5. Step 5: Solve for x
    x = 24,794,937,922.92/191,462.20
  6. Step 6: Final answer
    x = 129,503.05

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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.