Home / 156,742.40-235,113.60-56,905.85

Finding the Fourth Proportional to 156,742.40, 235,113.60 and 56,905.85

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Solution

The fourth proportional to 156,742.40, 235,113.60 and 56,905.85 is: 85,358.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,742.40 : 235,113.60 = 56,905.85 : x
  2. Step 2: Convert to fraction form
    156,742.40/235,113.60 = 56,905.85/x
  3. Step 3: Cross multiply
    156,742.40x = 235,113.60 × 56,905.85
  4. Step 4: Simplify right side
    156,742.40x = 13,379,339,254.56
  5. Step 5: Solve for x
    x = 13,379,339,254.56/156,742.40
  6. Step 6: Final answer
    x = 85,358.78

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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.