Home / 156,722.40-235,105.20-56,858.40

Finding the Fourth Proportional to 156,722.40, 235,105.20 and 56,858.40

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Solution

The fourth proportional to 156,722.40, 235,105.20 and 56,858.40 is: 85,295.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,722.40 : 235,105.20 = 56,858.40 : x
  2. Step 2: Convert to fraction form
    156,722.40/235,105.20 = 56,858.40/x
  3. Step 3: Cross multiply
    156,722.40x = 235,105.20 × 56,858.40
  4. Step 4: Simplify right side
    156,722.40x = 13,367,705,503.68
  5. Step 5: Solve for x
    x = 13,367,705,503.68/156,722.40
  6. Step 6: Final answer
    x = 85,295.44

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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.