Home / 156,905.85-235,358.78-109,666.65

Finding the Fourth Proportional to 156,905.85, 235,358.78 and 109,666.65

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Solution

The fourth proportional to 156,905.85, 235,358.78 and 109,666.65 is: 164,499.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,905.85 : 235,358.78 = 109,666.65 : x
  2. Step 2: Convert to fraction form
    156,905.85/235,358.78 = 109,666.65/x
  3. Step 3: Cross multiply
    156,905.85x = 235,358.78 × 109,666.65
  4. Step 4: Simplify right side
    156,905.85x = 25,811,008,402.35
  5. Step 5: Solve for x
    x = 25,811,008,402.35/156,905.85
  6. Step 6: Final answer
    x = 164,499.98

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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.